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2002 BMW 325I 2.5L Air Pump Repair manual

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Filed Under (Bmw Manuals) by admin on 05-02-2012

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Check engine light on and fault codes stored. Vehicle running normally. Tests/Procedures: 1. Based upon stored fault codes for secondary air system, there is little or no flow of secondary air into engine. Typical causes for this issue are failed secondary air pumps and/or secondary air check valves. Secondary air pump should operate under normal circumstances when vehicle is first started to perform system test. Pump will normally be heard running when standing in front right corner of vehicle. 2. The secondary air pump is located in the right front of engine compartment. A secondary air pump relay located in the glove box is controlled by the engine control module and sends power to the secondary air pump. 3. Air pump can be disconnected and supplied with power and ground at pump to verify operation is possible. 4. Check valve on front right of cylinder head can be supplied with vacuum and visually checked for opening of valve. 5. Vacuum line from check valve to operating solenoid should also be inspected for cracks or being disconnected. Vacuum line follows right side of cylinder head to back of cylinder head to the secondary air solenoid located under left rear side of intake manifold. 6. The solenoid should allow vacuum flow to the check valve during vacuum pump operation. The solenoid is controlled directly by the engine control module and receives power during key-on-engine-off. Potential Causes: A.I.R. Check Valve Engine Control Module (ECM) Codes — Engine control module fault. Defective Secondary Air Pump Secondary Air Pump Relay Secondary Air Supply Hose Broken Vacuum Line

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2003 BMW 525I 2.5L Check engine light on and fault codes stored Vehicle running normally

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Filed Under (Bmw Manuals) by admin on 01-05-2012

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1. Based upon stored fault codes for secondary air system, there is little or no flow of secondary air into engine. Typical causes for this issue are failed secondary air pumps and/or secondary air check valves. Secondary air pump should operate under normal circumstances when vehicle is first started to perform system test. Pump will normally be heard running when standing in front right corner of vehicle. 2. The secondary air pump is located in the right front of engine compartment. A secondary air pump relay located in the glove box is controlled by the engine control module and sends power to the secondary air pump. 3. Air pump can be disconnected and supplied with power and ground at pump to verify operation is possible. 4. Check valve on front right of cylinder head can be supplied with vacuum and visually checked for opening of valve. 5. Vacuum line from check valve to operating solenoid should also be inspected for cracks or being disconnected. Vacuum line follows right side of cylinder head to back of cylinder head to the secondary air solenoid located under left rear side of intake manifold. 6. The solenoid should allow vacuum flow to the check valve during vacuum pump operation. The solenoid is controlled directly by the engine control module and receives power during key-on-engine-off. Potential Causes: A.I.R. Check Valve Engine Control Module (ECM) Codes — Engine control module fault. Defective Secondary Air Pump Secondary Air Pump Relay Secondary Air Supply Hose Broken Vacuum Line Diagnostic Codes: P0491, P0492 Author: Robert Jacobs Average Reported Mileage: 69066

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1999 Chevrolet Silverado The service engine soon light is on with trouble code P1416 present

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Filed Under (Chevrolet Manuals) by admin on 07-05-2012

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Tests/Procedures: 1. Use a scanner and command the air pump on with the engine running at idle. Check if the O2 sensors go lean. 2. If the O2 sensor does not go lean on one bank, see if the check valve at the exhaust manifold is stuck closed, not allowing air into the manifold. Potential Causes: Defective Check Valve Diagnostic Codes: P1416 Author: Christopher Pittman Average Reported Mileage: 85812 Confirmed Fix Summary Confirmed Fix 18 – Air Injection Reaction (AIR) Check Valve 1 – Air Injection Reaction (AIR) Check Valve, Air Injection Reaction (AIR) Pump Confirmed Fix Details Tech Reported Fix Details Confirmed Fix Lee Stroup Sr. November 15, 2007 2001 Chevrolet Silverado 1500, 5.3L, Vin T, Eng Cfg V8 * A.I.R. Check Valve – removed check valves, found one rusted closed, one restricted, replaced both valves. Moisture from exhaust seems to have rusted both valves. Air Injection Reaction (AIR) Check Valve Paul Puleo August 20, 2009 1999 Chevrolet Camaro, Z28 5.7L * Replaced Both Air Injection Reaction (AIR) Check Valves – bank 2 AIR check valve restrticted, bank 1 slightly restricted replaced both Air Injection Reaction (AIR) Check Valve SouthGate January 05, 2009 2000 Chevrolet Silverado 1500, 4.8L, Vin V, Eng Cfg V8 * Replaced Air Injection Reaction (AIR) Check Valve – replaced boht check valves. fix the code. Air Injection Reaction (AIR) Check Valve Dwight Heckman July 31, 2008 2000 Chevrolet Blazer, 4.3L * Check Valve – replacing the check valve and cleaning out the lines repaired the problem. Air Injection Reaction (AIR) Check Valve Nick Secchitano June 16, 2009 2000 Chevrolet Silverado 1500, 5.3L, Vin T, Eng Cfg V8 * Replaced Both Air Injection Reaction (AIR) Check Valves – Air injection check valves Air Injection Reaction (AIR) Check Valve Mark Bertelsen 1998 Chevrolet Camaro, Z28 5.7L * Replaced Air Injection Reaction (AIR) Check

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1993 Ford Escort CIRCUIT TEST J – FUEL PUMP CIRCUIT (RELAY AND INERTIA SWITCH)

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Filed Under (Ford Manuals) by admin on 19-01-2012

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resistance between test pin No. 22 and test pins No. 40 and 60. If resistance is less than 10,000 ohms, repair short circuit and repeat QUICK TEST. If resistance is 10,000 ohms or more, go to step 5). 5)Check Fuel Pump Circuit Continuity Turn ignition off. Leave fuel pump relay and PCM disconnected. Measure resistance between FUEL PUMP circuit at fuel pump relay wiring harness connector and test pin No. 22 at breakout box. If resistance is less than 5 ohms, replace PCM and repeat QUICK TEST. If resistance is 5 ohms or more, repair open circuit and repeat QUICK TEST. 10)Code 95/542 A KOEO Code 95/542 indicates one of the following conditions: Engine Starts: * Fuel pump secondary circuit shorted to power. * Fuel pump relay contacts always closed. * Open FPM circuit between PCM and junction to POWER-TO-PUMP circuit. * Left/front HO2S short to power (dual HO2S applications). * Faulty PCM. No Start: * IFS switch circuit open or not reset. * Open circuit in or between PCM and fuel pump. * Faulty ground connection at fuel pump. * Faulty fuel pump. If engine starts, go to step 11). If engine does not start, go to step 15). 11)Check Fuel Pump Operation Turn ignition on. Wait 5 seconds. Listen for fuel pump operation. If fuel pump is off, go to step 13). If fuel pump is on, go to step 12). 12)Check For Fuel Pump Relay Always Closed Turn ignition off. Disconnect fuel pump relay. Turn ignition on. If fuel pump is off with relay disconnected, replace fuel pump relay and repeat QUICK TEST. If fuel pump is on with relay disconnected, repair short to power in POWER-TO-PUMP or FPM circuit. (For models with relay block, also check fuel pump prime plug circuit). Repeat QUICK TEST. 13)Check Continuity Of Fuel Pump Monitor (FPM) Circuit Turn ignition off. Disconnect PCM 60-pin connector. Inspect and repair any damaged terminals. Install EEC-IV Breakout Box (T83L-50-EEC-IV) , leaving PCM disconnected. Disconnect fuel pump relay. Measure resistance between test pin No. 8 (No. 19 on Escort, and Tracer) at breakout box and POWER-TO-PUMP circuit at fuel pump relay wiring harness connector. If resistance is less than 5 ohms, go to step 25) (dual HO2S) or replace PCM and repeat QUICK TEST (single HO2S). If resistance is 5 ohms or more, repair open circuit and repeat QUICK TEST

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2005-2006 Toyota Tundra/ Sequoia 4.7L V8 MR Tech Power-flow Intake system Installation Manual

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Filed Under (Toyota Manuals) by admin on 23-03-2012

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The installation of this cold air intake does require mechanical skills. Removal of engine covers, air lines and removing several plastic plugs and screws that may be difficult. It is recommended that this system be installed by a professional mechanic. Be sure to disconnect the negative terminal before proceeding. Congratulations! You have just purchased the worlds first tuned intake system. MR Technology, Leading the way! Patent pending (A) and (G) (B) (D) (A) Power-Box contents: POWER-FLOW: An air intake evolution Tools required: 1- 8mm socket 1- 10mm socket 1- 12mm socket 1- Phillips screw driver 1- 8mm nut driver 1- 55mm allen wrench 1- Disc grinder or Dremel (C) (E) Figure 1 Figure 2 Carefully, remove the mass air flow sensor from the air sensor housing to be reused later in the instruc- tions. Unhook three spring clamps from the top air box cleaner. Once the hooks have been removed, continue to detach the air box top from the lower air box cleaner. See fig. 15 for better illustration. Once the nut and bolt have been removed, continue to remove the entire hose clamp. Unplug the electrical harness clip from the mass air flow sensor as shown above. Disconnect the 4mm vacuum line located to the side of the air box cleaner. Unscrew the nut and bolt the hose clamp that secures the hose over the radiator. Loosen the two flange nuts on the engine cover in order to remove the cover. Disconnec the 6mm vacuum hose that will be reused later in the instructions. Page 2 of Part# PF2019 Unscrew the two screws from the mass air flow sensor, shown above. Loosen the hose clamp on the air duct connected to the throttle body. Unplug the crank case breather hose from the air crank case port as shown above. >>> >>>> Figure 3 Figure 8 Figure 7 Figure 6 Figure 11 Figure 10 Figure 9 Figure 14 Figure 13 Figure 12 >>>> Figure 4 Figure 5 Once the flange nuts have been removed, continue to remove the cover from the engine compartment as shown above. >>> >>> >>> >>> >>> >>> The three spring clamps shown above are unhooked from the top air box cleaner (A). Remove the air filter panel once the top has been removed (B). Once the air filter panel is removed, there are three bolts that will be removed in order to detach the lower air box cleaner. Remove the entire lower air box cleaner from the engine compartment. Place the power bands over each end of the silicone elbow. press the short end of the silicone elbow over the throttle body. Once the silicone elbow has been aligned continue to semi-tighten power band over the throttle body end. The first vibra-mount is aligned to the pre-tapped hole located behind the head lamp. The first vibra-mount is now installed as shown above. Screw the second vibra-mount is aligned over the wheel well bracket. The second vibra-mount is now installed as shown above. The stock 6mm hose is removed from the fuel pressure regulator. Press the new 16″- 4mm vacuum hose over the fuel pressure regulator port. Page 3 of Part# PF2019 Figure 15 Figure 17 Figure 16 Figure 20 Figure 19 Figure 18 Figure 23 Figure 26 Figure 25 Figure 22 Figure 21 Figure 24 (B) (A) (A) (A) >>> >>> >>> >>> Both vibra-mounts are now installed, you are now ready to go on to the next step. Place one .462 and a .412 power band over the silicone step hose. Press the 3 3/4″ side over the velocity stack as shown above. The Power box is now sitting flush over the vibra- mounts and a fender washer is placed over each vibra-mount. The last m6 flange nut is placed over the vibra- mount located behind the Power box. The 65mm bolt is tightened with an allen wrench. The assembled power box is lowered into the engine compartment. Align the mounting points on the bracket arms over the vibra-mounts. One 45mm bolt is removed from the top of the box. The bracket is place under the Power box and the 45mm bolt is aligned and screwed back in place as shown above. Remove the 65mm bolt from the velocity stack base. Align the bracket to the hole and insert the 65mm bolt back in place

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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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1989 Toyota 4Runner ENGINE PERFORMANCE Removal Overhaul And Installation

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Filed Under (Toyota Manuals) by admin on 26-10-2011

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CARBURETOR (COROLLA) REMOVAL 1) Drain cooling system. Disconnect air intake hose. Disconnect emission control hoses from air cleaner. Remove air cleaner mounting bolt and wing nut. Remove air cleaner. 2) Disconnect accelerator cable. Disconnect throttle cable (A/T). Disconnect carburetor wiring connector. Disconnect emission control hoses and tag for installation. Disconnect fuel inlet hose. Remove 4 carburetor mounting nuts and No. 1 vacuum pipe. Remove carburetor. DISASSEMBLY Air Horn 1) Remove air cleaner setting bolt. Remove fuel pipe clamp, union, fuel pipe and gaskets. Remove vacuum hoses. Remove pump and pivot screw and pump arm with connecting link. Disconnect choke link and choke opener link. 2 Remove 8 air horn screws and number plate, fuel pipe support and wire clamps. Remove air horn from carburetor body. Disconnect wiring from solenoid valves. 3) Remove float pivot pin, float and needle valve assembly. Remove air horn gasket, needle valve seat and gasket, power piston retainer, power piston and spring. Remove pump plunger and boot. See Fig. 2.
Fig. 1: Exploded View of Aisan Carburetor Main Body (Corolla) Courtesy of Toyota Motor Sales, U.S.A., Inc. Fig. 2: Exploded View of Air Horn Assembly (Corolla) Courtesy of Toyota Motor Sales, U.S.A., Inc. Main Body 1) Remove solenoid valves from carburetor body. Remove stopper gasket. Disconnect throttle positioner links and remove bracket attaching bolts. Remove accelerator pump retainer gasket and remove pump discharge weight, long spring and discharge large ball. See Fig. 1. 2) Remove pump dampening spring. Using tweezers, remove plunger retainer and check ball. Disconnect throttle positioner link and throttle position levers, washer and spring. Remove primary and secondary main passage plugs and gaskets. Remove primary and secondary main jets and gaskets. 3) Remove auxiliary acceleration pump (AAP) housing, spring and diaphragm. Remove AAP inlet plug and check ball. Remove outlet plug, short spring and small ball. Remove primary and secondary small venturies. 4) Remove sight glass retainer, sight glass and “O” ring. Remove throttle lever return spring and back spring. Remove throttle lever and fast idle cam. 5) Disconnect link and remove secondary throttle valve diaphragm assembly and gasket. Remove throttle position switch and bracket. Remove 3 body-to-flange screws and vacuum passage screw. Separate body from flange. See Fig. 3. Remove washer from throttle valve shaft. Remove idle mixture adjusting screw and idle speed adjusting screw.

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1998 Dodge Grand Caravan Fuel Pump Relay Removal And Installation Manual

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Filed Under (Dodge Manuals) by admin on 13-06-2012

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Fuel Pump Relay 1. Remove fuel pump relay from power distribution center at driver’s side front corner of engine compartment, near the battery. Note terminal identification on fuel pump relay. See Fig. 6 . 2. To check fuel pump relay resistance, use ohmmeter and check resistance between terminals No. 85 and 86 on fuel pump relay. Replace fuel pump relay if resistance is not 70-80 ohms. 3. To check fuel pump relay operation, connect ohmmeter between terminals No. 30 and 87A on fuel pump relay. See Fig. 6 . Ohmmeter should indicate continuity between terminals No. 30 and 87A on fuel pump relay. 4. Connect ohmmeter between terminals No. 30 and 87 on fuel pump relay. See Fig. 6 . Ohmmeter should indicate no continuity between terminals No. 30 and 87 on fuel pump relay. 5. Connect 16-gauge jumper wire between negative battery terminal and terminal No. 85 on fuel pump relay. Connect 16-gauge jumper wire between positive battery terminal and terminal No. 86 on fuel pump relay. 6. Fuel pump relay should now be energized. No continuity should now exist between terminals No. 30 and 87A on fuel pump relay. Continuity should now exist between terminals No. 30 and 87 on fuel pump relay. Disconnect jumper wires. Replace fuel pump relay if defective. 7. If fuel pump relay or wiring circuit failure exists, a Diagnostic Trouble Code (DTC) will be stored in Powertrain Control Module (PCM). See appropriate G – TESTS W/CODES article. Fig. 6: Identifying ASD Relay & Fuel Pump Relay Terminals Courtesy of CHRYSLER CORP.

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2001 Hyundai Sonata Air Bag Restraint Systems Repair Manual

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Filed Under (Hyundai Manuals) by admin on 21-05-2011

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Scan Tool Display B1111 Battery voltage high B1112 Battery voltage low B1346 Driver-side air bag resistance high B1347 Driver-side air bag resistance low B1348 Driver-side air bag short to ground B1349 Driver-side air bag short to battery B1352 Passenger-side air bag resistance high B1353 Passenger-side air bag resistance low B1354 Passenger-side air bag short to ground B1355 Passenger-side air bag short to battery B1361 Driver-side seat belt pretensioner resistance high B1362 Driver-side seat belt pretensioner resistance low B1363 Driver-side seat belt pretensioner short to ground B1364 Driver-side seat belt pretensioner short to battery B1367 Passenger-side seat belt pretensioner resistance high B1368 Passenger-side seat belt pretensioner resistance low B1369 Passenger-side seat belt pretensioner short to ground B1370 Passenger-side seat belt pretensioner short to battery B1378 Driver side impact air bag resistance high B1379 Driver side impact air bag resistance low B1380 Driver side impact air bag short to ground B1381 Driver side impact air bag short to battery B1382 Passenger side impact air bag resistance high B1383 Passenger side impact air bag resistance low B1384 Passenger side impact air bag short to ground B1385 Passenger side impact air bag short to battery B1400 Satellite left side defective B1401 Satellite left side short to ground B1402 Satellite left side short to battery B1403 Satellite right side defective B1404 Satellite right side short to ground B1405 Satellite right side short to battery B1406 PPD defective B1407 PPD communication error B1408 Satellite left communication error B1409 Satellite right communication error B1620 Internal fault B1650 SRSCM crash recorded (replace SCRSM) B1651 Crash recorded driver-side air bag

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2005 Ford Lincoln LS Climate Control System Manual

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Filed Under (Ford Manuals) by admin on 21-05-2011

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When PANEL is selected: z The Recirc request button is enabled. If the Recirc request button is selected (indicator ON), the air inlet door actuator positions the air inlet door to close off outside air from entering the passenger compartment. If the Recirc request button is not selected (indicator OFF), the air inlet door actuator positions the air inlet door to admit only outside air into the passenger compartment. z The panel door actuator positions the panel door in the OPEN position and the floor door and defrost door actuators position the floor door and defrost door in the CLOSED position, directing airflow to the instrument panel A/C registers. z The dual coolant control valve is automatically controlled by the DATC module based on the temperature setting(s). z The A/C request button is enabled. When the A/C request button is selected (indicator ON), the A/C compressor will operate if the outside air temperature is above approximately 2° C (35°F). When the A/C request button is not selected (indicator OFF), the A/C compressor will not operate and the air cannot be cooled below the outside temperature. z The blower motor is ON. PANEL/FLOOR When PANEL/FLOOR is selected: z The Recirc request button is enabled. If the Recirc request button is selected (indicator ON), the air inlet door actuator positions the air inlet door to close off outside air from entering the passenger compartment. If the Recirc request button is not selected (indicator OFF), the air inlet door actuator positions the air inlet door to admit only outside air into the passenger compartment. z The panel door and floor door actuators position the panel door and floor door in the OPEN position and the defrost door actuator positions the defrost door in the CLOSED position, directing airflow to the instrument panel A/C registers and the floor duct. z The dual coolant control valve is automatically controlled by the DATC module based on the temperature setting(s). z The A/C request button is enabled. When the A/C request button is selected (indicator ON), the A/C compressor will operate if the outside air temperature is above approximately 2° C (35°F). When the A/C request button is not selected (indicator OFF), the A/C compressor will not operate and the air cannot be cooled below the outside temperature. z The blower motor is ON. FLOOR

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