1995 buick lesabre ecm connector diagram

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1999-2001 Infiniti Q45 MIL “ON” REAR O2 SENSOR DTC SERVICE PROCEDURE

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Filed Under (Infiniti Manuals) by admin on 07-01-2012

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SERVICE PROCEDURE You will be performing the following, as required: • Determine the DTC Stored in ECM from the CONSULT-II Self-diagnosis results. • ECM Part Number Check to determine if this bulletin applies. • ECM Reprogramming (required if the ECM P/N in the vehicle matches one of those listed under “Current ECM P/N” in Chart A -page 2). • Replacing the Rear Oxygen Sensor (required if ECM Reprogramming is needed). Determine the DTC Stored in ECM: 1. Determine which DTC code is stored in the vehicle’s ECM by performing CONSULT-II Self-Diagnosis. 2/4 2. Print out the Self-Diagnosis results for use in ECM Part Number Check , below. See Figure 1 for an example of the CONSULT-II Self-Diagnosis printout. ECM Part Number Check 1. Compare the vehicle’s current ECM P/N (from your CONSULT-II Self Diagnosis printout) to those shown under Current ECM P/N in Chart A , below: Chart A – Current ECM P/N’s: Vehicle Current ECM P/N 1999-2001 Q45 23710-3H000, -3H001, -3H005, -3H006, -3H007 A. If the ECM P/N in the vehicle matches one of those listed under “Current ECM P/N” in Chart A (above): • Perform ECM Reprogramming on page 3. B. If the ECM P/N in the vehicle does not match one of those listed under “Current ECM P/N” in Chart A (above): • This bulletin does not apply. Use the appropriate Electronic Service Manual (ESM) to further diagnose and repair the incident. SELF-DIAG RESULTS SYSTEM ENGINE DATE 01/24/2002 5:35:07 P/N 23710-3H000 DTC Code TP020024 DTC RESULTS TIME HO2S2 (B1) 3 [P0138] Current ECM Part Number 3/4 ECM Reprogramming 1. Perform ECM Reprogramming to install the latest available ECM data. • If you are unfamiliar with ECM Reprogramming, click here to link to the “ECM Reprogramming For Infiniti Vehicles” general procedure or refer to Attachment A in the print copy of this bulletin. • For those familiar with ECM Reprogramming, perform the following:

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2000-2002 Infiniti G20 MIL “ON” REAR O2 SENSOR DTC P0138/P0139/P0140 Repair Manual

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Filed Under (Infiniti Manuals) by admin on 17-02-2012

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SERVICE PROCEDURE You will be performing the following, as required: • Determine the DTC Stored in ECM from the CONSULT-II Self-diagnosis results. • ECM Part Number Check to determine if this bulletin applies. • ECM Reprogramming (required if the ECM P/N in the vehicle matches one of those listed under “Current ECM P/N” in Chart A -page 2). • Replacing the Rear Oxygen Sensor (required if ECM Reprogramming is needed). Determine the DTC Stored in ECM: 1. Determine which DTC code is stored in the vehicle’s ECM by performing CONSULT-II Self-Diagnosis. 2. Print out the Self-Diagnosis results for use in ECM Part Number Check , below. See Figure 1 for an example of the CONSULT-II Self-Diagnosis printout. Figure 1 SELF-DIAG RESULTS SYSTEM ENGINE DATE 03/15/2002 3:35:35 P/N 23710-7J400 DTC Code TP020169 DTC RESULTS TIME HO2S2 (B1) 3 [P0138] Current ECM Part Number 2/3 ECM Part Number Check 1. Compare the vehicle’s current ECM P/N (from your CONSULT-II Self Diagnosis printout) to those shown under Current ECM P/N in Chart A , below: Chart A – Current ECM P/N’s: Vehicle Current ECM P/N 2000 M/T 23710-7J400, -7J401, -7J402, -7J460 2000 A/T 23710-7J410, -7J411, -7J412, 7J470 2001-2002 M/T 23710-6J105, -6J106, -6J107, -6J108, 6J170 2001-2002 A/T 23710-6J115, -6J116, -6J117, -6J118, -6J180 A. If the ECM P/N in the vehicle matches one of those listed under “Current ECM P/N” in Chart A (above): • Look in the “Vehicle” Column in Chart A (above) and determine the vehicle “configuration” (i.e. 2002 M/T). Make a note of the vehicle configuration and perform ECM Reprogramming , below. B. If the ECM P/N in the vehicle does not match one of those listed under “Current ECM P/N” in Chart A (above): • This bulletin does not apply. Use the appropriate Electronic Service Manual (ESM) to further diagnose and repair the incident. ECM Reprogramming 1. Perform ECM Reprogramming to install the latest available ECM data. • If you are unfamiliar with ECM Reprogramming, click here to link to the “ECM Reprogramming For Infiniti Vehicles” general procedure or refer to Attachment A in the print copy of this bulletin. • For those familiar with ECM Reprogramming, perform the following:

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1995-1999 Buick Riviera Steering Vibration/Shudder/Moan During Parking Maneuvers on Dry Pavement (Install Power Steering Pressure (Inlet) and/or Return (Outlet) Hose Assembly)

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Filed Under (Buick Manuals) by admin on 11-02-2012

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1. Verify that the power steering pump reservoir is full. 2. Verify that the accessory drive belt is in good condition and that the pulleys are not bent or damaged. 3. Verify proper belt tension and operation of the belt tensioner. 4. Check for power steering hose ground out conditions. 5. Check for good engine idle and correct engine RPM. 6. Check to see that the rear transaxle mount does not have a plastic assembly aid installed which is used Subject: Steering Vibration/Shudder/Moan During Parking Maneuvers on Dry Pavement (Install Power Steering Pressure (Inlet) and/or Return (Outlet) Hose Assembly) Models: 1995-99 Buick Riviera 1997-2001 Buick Park Avenue, Ultra 2000-2001 Buick LeSabre 2000-2001 Pontiac Bonneville • 1995-98 Buick Riviera • 1997-98 Buick Park Avenue and Ultra • 1999 Buick Riviera • 1999-2001 Buick Park Avenue and Ultra • 2000-2001 Buick LeSabre • 2000-2001 Pontiac Bonneville • If fluid level is low, fill and check for leaks. • If power steering system has air in the system, perform the “Bleeding Air from Power Steering System” procedure as described in the Power Steering System sub-section of the Service Manual. Important: When performing the “Bleeding Air from Power Steering System” procedure, it is important that the front of the vehicle is supported by the lower control arms. If the vehicle is not supported by the lower control arms, the procedure may cause the strut bushing to dislocate and cause new concern. for assembly purposes. If the assembly aid is installed, remove the assembly aid and install the rear transaxle mount. 7. With the vehicle on dry pavement, maneuver the vehicle in parking positions. If the steering vibrates/shudders or moans in this test, replace the power steering pressure hose and/or the harmonic balancer. Important: A defective harmonic balancer on the 1995 Buick Riviera can influence steering vibrations after power steering hose installation. Important: When installing the pressure hose on the 1995 Buick Riviera, pull down on the pressure hose at the rear of the engine or bend the hose to allow clearance between the hose and the front of the dash. Power Steering Pressure (Inlet) Hose Replacement Procedure For 1995-1998 Vehicles: 1. Raise and suitably support the vehicle. Refer to Vehicle Lifting and Jacking in the General Information section of the Service Manual. 2. Drain the power steering fluid. Refer to Draining the Power Steering System in the Power Steering section of the Service Manual. 3. Remove the power steering gear assembly heat shield (1). 4. Disconnect the power steering pressure hose from the power steering pump assembly (4). 5. Remove the bolt/screws from the retaining clips (3). 6. Disconnect the power steering pressure hose from the power steering gear assembly (2). 7. Remove the power steering pressure hose assembly from the vehicle. 8. Install the power steering pressure hose assembly to the vehicle. 9. Connect the power steering pressure hose to the power steering pump assembly (4). 10. Connect the power steering pressure hose to the power steering gear assembly (2). Tighten Tighten the power steering pressure hose to the steering gear to 27 N·m (20 lb ft). 11. Install the bolt/screws to the retaining clips (3). Tighten Tighten the retaining clip bolt/screws to 6 N·m (53 lb in). 12. Install the power steering gear assembly heat shield (1). 13. Lower the vehicle. 14. Fill and bleed the power steering system using, J 43485. Refer to Corporate Bulletin Number 83-32-09, dated November, 1998. Power Steering Pressure (Inlet) and Return (Outlet) Hose Replacement Procedure For 1999-2001 Vehicles: 1. Raise and suitably support the vehicle. Refer to Vehicle Lifting and Jacking in the General Information section of the Service Manual. 2. Drain the power steering fluid. Refer to Draining the Power Steering System in the Power Steering section of the Service Manual. 3. Remove the LH front wheel/tire assembly. 4. Remove the LH lower splash shield. 5. Remove the lower radiator air deflector (engine splash shield, if installed.

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1995 Toyota 4Runner STARTING AND CHARGING SYSTEMS REPAIR MANUAL

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Filed Under (Toyota Manuals) by admin on 15-03-2012

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TROUBLE SHOOTING NOTE: See TROUBLE SHOOTING – BASIC PROCEDURES article in GENERAL INFORMATION. 1) If a no-start condition exists and battery is known to be good, connect test light or voltmeter between starter solenoid terminal No. 50 and ground. See Figs. 6 and 7. 2) Turn ignition switch to START position. If test light or voltmeter does not indicate voltage, check main fusible links and large ampere main fuses in engine compartment relay box. If fusible links and fuses are okay, see IGNITION SWITCH CONTINUITY TEST and/or STARTER RELAY TEST under ON-VEHICLE TESTING. ON-VEHICLE TESTING NOTE: Before testing, ensure battery is fully charged, battery cables and terminal ends are tight and clean, and engine grounds are secure. CLUTCH START SWITCH TEST 1) Switch is located above clutch pedal on bracket. Disconnect wiring harness connector from switch. 2) Connect ohmmeter probes to switch terminals. Depress clutch pedal. If continuity does not exist, adjust or replace clutch start switch. If continuity exists, check circuit to starter relay for open, and check starter relay. See STARTER RELAY TEST. CLUTCH START CANCEL SWITCH TEST 1) Locate switch in left dash panel. Remove right lower instrument panel to access switch connector. Disconnect wiring harness connector from switch pigtail connector. See Fig. 1. 2) Connect negative lead of ohmmeter to terminal No. 1. Ensure continuity does not exist between connector terminals No. 1 and 2, terminals No. 1 and 3, and terminals No. 2 and 3. Check operation of switch by connecting jumper wires from 12-volt battery. Connect positive lead to terminal No. 3 and negative battery lead to terminal No. 1. 3) Using ohmmeter, ensure continuity does not exist between connector terminals No. 1 and 2 until switch button is pushed. When switch button is pushed, switch light should come on and continuity should exist. Disconnect battery and ensure continuity does not exit between terminals No. 1 and 2. If switch does not test as specified, replace switch. Fig. 1: Identifying Clutch Start Cancel Switch Connector Terminals Courtesy of Toyota Motor Sales, U.S.A., Inc. IGNITION SWITCH CONTINUITY TEST WARNING: Deactivate air bag system before performing any service operation. For 1996 4Runner, see AIR BAG RESTRAINT SYSTEM article. 1995 1) Disconnect negative battery cable. Removedriver’s lower instrument panel cover. Remove upper and lower steering column covers if needed. Locate ignition switch wiring harness 8-pin connector. See Figs. 2-3. 2) With ignition switch in LOCK position, there should be no continuity between any terminals. With ignition switch in ACC position, there should be continuity between terminals No. 2 and 3. With ignition switch in ON position, there should be continuity between terminals No. 1, 2 and 3, and between terminals No. 7 and 8. 3) With ignition switch in START position, there should be continuity between terminals No. 1, 4 and 6, and between terminals No. 7 and 8. If continuity is not as specified, replace switch.

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1998 Acura 3.5RL FUEL PUMP RELAY (3.5RL) INSTALLATION MANUAL

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Filed Under (Acura Manuals) by admin on 13-06-2011

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Fuel pump relay is located in the front of the trunk. Turn ignition switch to START position. If engine starts, go to next step. If engine does not start, go to FUEL PUMP RESISTOR (3.5RL) . 2. Turn engine off and ignition on. Measure voltage between ground and PCM 12-pin connector terminal No. 4 (Green wire). If battery voltage is present, go to next step. If battery voltage is not present, go to step 4). 3. Start engine and run at 3000 RPM with no loads and transmission in Park or Neutral, until radiator fan comes on. Allow engine to idle for at least one minute. Turn engine off. Disconnect vacuum hose No. 21 from vacuum manifold. Apply 8-12 in. Hg (27-40 kPa) vacuum to Manifold Absolute Pressure (MAP) sensor. Start engine and run at 6500 RPM with no loads and transmission in Park or Neutral. Measure voltage between ground and PCM 12-pin connector terminal No. 4 (Green wire). If less than one volt is present, fuel pump relay circuit is okay. If one volt or more is present, substitute a known good PCM, then recheck. If symptom or indication goes away, replace original PCM. 4. Turn ignition off. Disconnect PCM 26-pin and 12-pin connectors. Disconnect fuel pump relay 4-pin connector. Using a fused jumper wire, connect fuel pump relay connector terminals No. 2 (Red/White wire) and No. 4 (Green wire). Turn ignition on. Measure voltage between ground and PCM 12-pin connector terminal No. 4 (Green wire). If battery voltage is not present, go to next step. If battery voltage is present, replace fuel pump relay. 5. Remove jumper wire. Measure voltage between ground and fuel pump relay 4-pin connector terminal No. 2 (Red/White wire). If battery voltage is present, repair open or short in Green wire between PCM and fuel pump relay. If battery voltage is not present, repair open in Red/White wire between fuel pump relay and FUEL PUMP fuse No. 22 (20-amp), located in underdash fuse/relay box. FUEL PUMP RESISTOR (3.5RL) 1. Fuel pump resistor is located in the left corner of the trunk. Disconnect fuel pump resistor 2-pin connector. Turn ignition on and measure voltage between ground and fuel pump resistor connector terminal No. 2 (Yellow wire) within 2 seconds. If battery voltage is present for 2 seconds after ignition is turned on, go to next step. If battery voltage is not present as specified, check PGM-FI relay. See PGM- FI MAIN RELAY . 2. Turn ignition off. Using a jumper wire, connect fuel pump resistor connector terminals No. 1 (Black/Yellow wire) and No. 2 (Yellow wire). Turn ignition switch to START position. If engine does not start, go to next step. If engine starts, replace fuel pump resistor. 3. Turn ignition off. Disconnect fuel unit sub-harness Gray, 10-pin connector located in front of trunk, above fuel pump access panel, next to Gray, 20-pin connector. Turn ignition on and measure voltage between ground and sub-harness connector terminal No. 7 (Black/Yellow wire) within 2 seconds. If battery voltage is present for 2 seconds after ignition is turned on, check fuel pump. If battery voltage is present as specified, repair open in Black/Yellow wire between fuel pump resistor and fuel pump

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Vehicles Equipped with a Webasto Sunroof System

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Filed Under (More Manuals) by admin on 13-02-2011

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Models: 1997-2000 Buick Century 1988-1991 Buick Reatta 1988-1999 Buick Riviera 1989-2000 Buick Park Avenue 1998-2000 Buick Regal 1988-1997 Cadillac Seville 1988-1996 Cadillac Fleetwood 1988-2000 Cadillac Eldorado 1989-2000 Cadillac DeVille 1995-2000 Chevrolet Cavalier 1998-2000 Chevrolet Malibu 2000 Chevrolet Impala, Monte Carlo 1988-1995 Oldsmobile Ciera 1989-1996 Oldsmobile Ninety Eight 1994-1998 Oldsmobile Achieva 1995-1999 Oldsmobile Aurora 1997 Oldsmobile Silhouette 1998-1999 Oldsmobile Cutlass 1998-2000 Oldsmobile Intrigue 1999-2000 Oldsmobile Alero 1987 Pontiac 6000 1989-1998 Pontiac Bonneville 1994-2000 Pontiac Grand Am 1995-2000 Pontiac Sunfire 1997-1998 Pontiac Trans Sport 1997-2000 Pontiac Grand Prix 1997-2000 Chevrolet & GMC S/T Models (Blazer, Jimmy) 1997-2000 Oldsmobile Bravada #99-08-67-003: Info – Vehicles Equipped with a Webasto Sunroof System – (Jul 23, 1999) This bulletin is being revised to update the model information. Please discard Corporate Bulletin Number 43-10-18A (Body Section)

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NISSAN ALTIMA OR SENTRA W /QR25 ENGINE NO-START AFTER COLD SOAK REPAIR MANUAL

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Filed Under (Nissan Manuals) by admin on 10-05-2012

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SERVICE PROCEDURE Replace Starter, Add Cleaner 1. Replace the starter motor. • Use the part number from the Parts Information section of this bulletin. • Refer to section SC, “STARTING SYSTEM, Removal and Installation” in the applicable Nissan Electronic Service Manual (ESM). 2. Add one full can of Nissan In-Tank Fuel System Cleaner to the fuel. NOTE: If the fuel tank is less than ¾ full, instruct the customer to fill the tank as soon as it is convenient after the repair. Driving with the Cleaner installed and low fuel level will not harm the fuel system or engine, but will reduce the effectiveness of the cleaning process. 3. Continue to ECM Part Number Check (next page). 1. With CONSULT-II “ON”, print the Self-DIAG Results as follows: START (Nissan) >> ENGINE >> Self-DIAG Results >> PRINT SELF-DIAG RESULTS SYSTEM ENGINE DATE XX/XX/XXXX* 11:07:11 P/N 23710-XXXXX TP020389h DTC RESULTS TIME NO DTC IS DETECTED Current ECM Part Number * Example, your screen may differ. 3. Using the printout from Step 1: • Compare the vehicle’s current ECM P/N to those shown under Current ECM P/N in Chart 1, below: • This comparison will allow you to determine if the ECM needs to be reprogrammed. Chart 1, Current ECM P/N’s: VEHICLE PACKAGE NATS? CURRENT ECM P/N A/T, ASCD YES 23710-9J305, -9J003, -9J002, -9J001, -9J000, -8J001, -8J000 M/T, ASCD YES 23710-9J315, -9J013, -9J012, -9J011, -9J010, -8J061, -8J060 A/T, no ASCD YES 23710-9J300, -9J008, -9J007, -9J006, -9J005, -8J011, -8J010 02-04 Altima M/T, no ASCD YES 23710-9J310, -9J018, -9J017, -9J016, -9J015, -8J071, -8J070 YES 23710-8U542, -8U541, -8U540, -8U041, 8U040 A/T NO 23710-8U502, -8U501, -8U500, -8U001, 8U000 YES 23710-8U562, -8U561, -8U560, -8U061, -8U060 02-03 Sentra 5 M/T NO 23710-8U512, -8U511, -8U510, -8U011, -8U010 YES 23710-8U072, -8U071, -8U070 02 Sentra 6 M/T NO 23710-8U022, -8U021, -8U020 YES 23710-8U572, -8U571, -8U570 03 Sentra 6 M/T NO 23710-8U522, -8U521, -8U520 NOTE: The 2004 Sentra ECM does not need to be reprogrammed for this bulletin. A. If your vehicle’s ECM P/N matches a P/N in the chart above: • Perform ECM Reprogramming (page 4). B. If your vehicle’s ECM P/N does not match a P/N in the chart above: • ECM Reprogramming is not necessary, bulletin complete / end here

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2003 Honda Accord EX A/ T INTERLOCK SYSTEM REPAIR MANUAL

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Filed Under (Honda Manuals) by admin on 21-01-2012

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A/T Interlock System Circuit Diagram SHIFT LOCK SYSTEM CIRCUIT TROUBLESHOOTING 1. Press the brake pedal. Are the brake lights ON? YES -Go to step 2. NO -Repair faulty brake light circuit. 2. Connect the HDS to the DLC. Check engine speed and throttle position in the A/T data list. Is the engine speed at idle, and TPS about 0.5 V? YES -Go to step 3. NO -Repair engine speed or throttle position input. 3. Select SHIFT LOCK SOL TEST in MISC. TEST MENU, then carry out shift lock solenoid function test. Does the shift lock solenoid work properly? YES -System circuit is OK. Check the shift lock mechanism, if necessary. NO -Go to step 4. 4. Remove the center console (See CENTER CONSOLE REMOVAL/INSTALLATION ). 5. Disconnect the shift lock solenoid connector. 6. Turn the ignition switch ON (II). 7. Measure the voltage between No. 1 terminal of the shift lock solenoid connector and body ground. Fig. 3: Measuring Voltage Between No. 1 Terminal Of Shift Lock Solenoid Connector & Body Ground Is there battery voltage? YES -Go to step 8. NO -Check for blown No. 21 fuse in the under-dash fuse/relay box. If the fuse is OK, repair open in the wire between the shift lock solenoid connector and the under-dash fuse/relay box. 8. Shift the shift lever into the P position, and press the brake pedal. Do not press the accelerator. 9. Measure the voltage between shift lock solenoid connector terminals while pressing the brake pedal Fig. 4: Measuring Voltage Between Shift Lock Solenoid Connector Terminals Is there battery voltage? YES -Check the shift lock mechanism. If the mechanism is OK, replace the shift lock solenoid (see Shift Lock Solenoid Replacement ). NO -Check for poor or loose PCM connector terminal E2 at the PCM, and check for an open in the wire between PCM connector terminal E2 and shift lock solenoid connector. If the connection and wire is OK, substitute a known-good PCM and recheck. KEY INTERLOCK SYSTEM CIRCUIT TROUBLESHOOTING

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1999 Saturn SL1 L4-1.9L SOHC VIN 8 Engine – Driveability Concerns/ Cooling System DTC’s Set

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Filed Under (Saturn Manuals) by admin on 19-05-2012

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1. Disconnect engine coolant temperature sensor electrical connector and inspect sensor and connector terminals for corrosion and/or evidence of engine coolant. ^If terminals are corroded or if there is evidence of engine coolant proceed to step 4. ^If terminals are not corroded and there is no evidence of engine coolant, reconnect the electrical connector and continue to next step. 2. Perform one or both of the following checks to determine whether the engine coolant temperature sensor is providing the correct temperature indication. If engine coolant temperature sensor reading does not pass either of the above tests, continue with next step. ^If engine is at ambient temperature (vehicle has been sitting overnight or not started for several hours), use a Scan tool to compare the inlet air temperature ( IAT ) to the engine coolant temperature ( ECT ). These two readings should be within 2°C (4°F) of each other. ^If engine is at operating temperature, install a thermometer in the coolant recovery reservoir. With the engine running and A/C off, use a Scan tool to compare the engine coolant temperature sensor reading to the thermometer reading. These two readings should be within 8°C (15°F) of each other If engine coolant temperature sensor reading passes both of the tests above, refer to appropriate symptom diagnostic chart in the Engine/Emissions Controls Section of applicable Engine Service Manual. 3. Turn ignition off. 4Remove coolant surge tank cap. 5. Drain at least 1.9 L (2 Qt.) of engine coolant from the cooling system by opening radiator drain valve or removing engine drain plug. Collect engine coolant in a container. 6. Disconnect engine coolant temperature sensor electrical connector. 7. Remove engine coolant temperature sensor from cylinder head. 8. Obtain replacement engine coolant temperature sensor (P/N 21025106). 9. Use appropriate tap to clean sensor mounting hole of any thread sealant residue. 10. Install engine coolant temperature sensor in cylinder head. Torque: Engine Coolant Temperature Sensor: 8 Nm (71 in-lbs) 11. Inspect harness connector terminals for corrosion and/or evidence of engine coolant. If harness connector terminals are corroded or there is evidence of engine coolant, the harness connector must be replaced with new connector (P/N 12117087-includes: connector, terminals, wires, and splice sleeves). 12. Connect engine coolant temperature sensor connector. 13. Transfer engine coolant drained in step 5 into coolant surge tank. If necessary fill coolant surge tank to the FULL COLD range with 50/50 solution of correct type of antifreeze and clean water. 14. Start engine and check for leaks. 15. Run engine until upper radiator hose is hot, then add additional coolant if needed to bring the level to the FULL COLD level (1991-early 1997) or within the Min./Max. cold range (late l997-2001). 16. Install coolant surge tank cap.

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2001 Dodge Durango BLOWER MOTOR RELAYS REPAIR MANUAL

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Filed Under (Dodge Manuals) by admin on 13-02-2012

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BLOWER MOTOR RESISTOR 1. Disconnect negative battery cable. Disconnect blower motor resistor harness connector. Using DVOM, check for continuity between all blower motor resistor terminals. If continuity exists between all terminals, go to next step. If continuity does not exist between all terminals, replace faulty blower motor resistor. 2. Check for open or short in circuits between blower motor resistor and heater control panel. Also check for open or short in wire between blower motor resistor and blower motor. BLOWER MOTOR SWITCH 2000 Dakota, 2000 Durango & 2000-01 Ram Pickup 1. Remove Power Distribution Center (PDC) cover. Using DVOM, check for battery voltage at PDC fuse No. 5 (40-amp) on Dakota and Durango; PDC fuse No. 12 (40-amp) on Ram Pickup. If battery voltage exists, go to next step. If battery voltage does not exist, check for open in Red wire between battery and underhood PDC. If Red wire is okay, replace underhood PDC. 2. Disconnect negative battery cable. Remove heater control panel. See HEATER CONTROL PANEL under REMOVAL & INSTALLATION. Disconnect heater control panel cable, electrical and vacuum connectors as necessary. Using DVOM, check for continuity between heater control panel harness connector terminal No. 7 (Black wire on Dakota and Durango; Black/Orange on Ram Pickup) and ground. See Fig. 5 . If continuity exists, go to step 4 . 3. If continuity does not exist, repair open in Black wire or Black/Orange wire between heater control panel 2001 Dodge Durango 2000-01 HEATER SYSTEMS’ ‘RWD Trucks & Vans harness connector terminal No. 7 and ground connector located at lower right corner of instrument panel (Dakota and Durango) or behind center of instrument panel (Ram Pickup). 4. Place heater mode control knob to any position except OFF. Using DVOM, check for continuity between heater control panel terminal No. 7 and terminals No. 3, 4, 5 and 6 while rotating blower motor switch. See Fig. 5 . 5. If continuity does not exist at any terminal, replace faulty heater control panel. If continuity exists as specified, check for open in circuits between heater control panel and blower motor resistor. Also check for an open in circuit between heater control panel and blower motor. See WIRING DIAGRAMS . Fig. 5: Identifying Heater Control Panel Blower Switch Connector Terminals (2000 Dakota & Durango Are Shown; Ram Pickup Is Similar) Courtesy of CHRYSLER CORP. Ram Van/Wagon 1. Disconnect negative battery cable. Remove heater control panel. See HEATER CONTROL PANEL under REMOVAL & INSTALLATION. Disconnect heater control panel harness connectors. Using DVOM, check for continuity between heater control panel C3 harness connector terminal “C” (Black wire) and ground. See Fig. 6 . If continuity exists, go to next step. If continuity does not exist, repair open in Black wire between heater control panel and ground connector located at lower right of steering column. 2. Place heater mode control selector to any position, except OFF. Using DVOM, check for continuity between appropriate terminals of heater control panel, for C3 connector terminals “B” (Violet wire) and “C” (Black wire). If continuity exists through heater control panel, go to next step. If continuity does not exist, replace faulty heater control panel assembly. 3. Using DVOM, check for continuity between heater control panel C3 connector terminal “B” (Violet wire) and C1 connector terminal “E” (Violet wire). See Fig. 6 . If continuity exists, go to next step. If continuity does not exist, repair open in Violet wire between heater control panel C3 and C1 connectors.

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