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parasitic drain truck battery gmc sierra

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Battery Electrical Drain/ Parasitic Load Test Repair Manual

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1. Disconnect the battery negative cable 2. Install the male end of the J 38758 to the negative battery terminal. 3. Turn OFF the test switch. 4. Install the negative battery cable to the female end of the test switch. 5. Install the Scan Tool (or equivalent) or wait for 20 minutes. 6. Turn ON the test switch. 7. Road test the vehicle while activating all accessories, including the radio and the air conditioning. 8. Lower the door glass, then exit the vehicle. Do not move the door handle after closing the door. 9. Open the hood. Important The power down timer will reset to 20 minutes if any wake up inputs are received by a Class 2 device (after the scan tool has put all Class 2 devices to sleep). 10. Put all of the Class 2 devices into the sleep mode. 11. Turn OFF the ignition switch. Remove the key. Important From this point on, electrical continuity must be maintained in the ground circuit of the battery through the Test Switch J 38758 in the ON position or through the ammeter J 39200 . 12. Components such as PCM, VCM, Automatic Air Conditioning, and the Truck Body Control Module have timers that draw several amps of current while they cycle down. This can give a false parasitic drain reading. Wait 20 minutes for these components to power down before continuing this test (or use the scan tool to put all Class 2 devices to sleep). 13. Connect a jumper wire with a 10 A fuse J 36169-A to the terminals of the test switch. 14. Turn the test switch to the OFF position. 15. Wait ten seconds. If the fuse does not blow, the current is less than 10 A. The ammeter can be used safely. 16. Before the fused jumper wire is removed, turn the test switch to the ON position. Important If an ammeter other than the J 39200 is used, ensure that the vehicle does not have a high current drain that would damage the ammeter when connected to the circuit. 17. Perform the following procedure in order to detect a high current drain: A. Set the ammeter J 39200 to the 10 A scale. B. Connect the ammeter to the test switch terminals. C. Turn OFF the test switch. This allows the current to flow through the ammeter. D. Wait one minute, then inspect the current reading. Ñ When there is a current reading of 2 A or less, turn ON the test switch, this maintains continuity in the electrical system. Ñ Then, switch the meter down to the 2 A scale, for a more accurate reading, when the test switch is reopened. E. Open the test switch. F. Take the reading in milliamps. G. Note the battery reserve capacity. Refer to Battery Usage . Ñ Divide this number by 4. Example: 90/4 = 22.5 Ñ Compare this to the ammeter reading. Ñ The current drain in milliamps should not exceed this number. Ñ Example: if a battery has a reserve capacity of 90 minutes, the current drain should not exceed 22 milliamps. H. When the current draw is too high, remove the electrical system fuses one at a time until the draw returns to a value less than or equal to specifications. Ñ Start with the fuses that are hot all the time. Ñ To remove the fuse, you must first open the door, which causes a high enough current flow to damage the ammeter. Ñ Protect the ammeter, without disturbing the electrical continuity, by turning ON the test tool before opening the door. Ñ Remove the courtesy lamp fuse. Ñ Note the ammeter reading. Ñ If the parasitic load is still excessive, start removing the remaining fuses one at a time. Ñ Keep the courtesy lamp fuse out during diagnosis, so the door can remain open. Ñ Perform Steps 11 through 13 each time a fuse is removed. I. Removing the PCM or VCM fuse should cause a drop of less than 10 milliamps. A drop greater than 10 milliamps indicates a possible short to ground. J. Check the orange wires along with the components connected to the orange wires. No drop in the milliampere reading indicates the PCM or VCM is not drawing current. K. Repeat the parasitic current drain test procedure after any repair has been completed. L. When the cause of the excessive current draw has been located and repaired, remove the ammeter and the parasitic draw test switch.

Battery Electrical Drain/ Parasitic Load Test

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1. Disconnect the battery negative cable. 2. Install the male end of the J 38758 to the negative battery terminal. 3. Turn OFF the test switch. 4. Install the negative battery cable to the female end of the test switch. 5. Install the Scan Tool (or equivalent) or wait for 20 minutes. 6. Turn ON the test switch. 7. Road test the vehicle while activating all accessories, including the radio and the air conditioning. 8. Lower the door glass, then exit the vehicle. Do not move the door handle after closing the door. 9. Open the hood. Important The power down timer will reset to 20 minutes if any wake up inputs are received by a Class 2 device (after the scan tool has put all Class 2 devices to sleep). 10. Put all of the Class 2 devices into the sleep mode. 11. Turn OFF the ignition switch. Remove the key. Important From this point on, electrical continuity must be maintained in the ground circuit of the battery through the Test Switch J 38758 in the ON position or through the ammeter J 39200 . 12. Components such as PCM, VCM, Automatic Air Conditioning, and the Truck Body Control Module have timers that draw several amps of current while they cycle down. This can give a false parasitic drain reading. Wait 20 minutes for these components to power down before continuing this test (or use the scan tool to put all Class 2 devices to sleep). 13. Connect a jumper wire with a 10 A fuse J 36169-A to the terminals of the test switch. 14. Turn the test switch to the OFF position. 15. Wait ten seconds. If the fuse does not blow, the current is less than 10 A. The ammeter can be used safely. 16. Before the fused jumper wire is removed, turn the test switch to the ON position. Important

2005 Hyundai Truck Santa Fe TRANSAXLE/ ATA SOLENOID DIAGNOSTIC REPAIR MANUAL

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Subject: ATA SOLENOID DIAGNOSTIC CODES P0740, P0741, P0742, P0743, P0746, P0748, P0750, P0755, P0760, P0765, P0770 This TSB supersedes TSB # 05-40-006 to include DTC descriptions in Step 10. DESCRIPTION: Incorrect operation of the transaxle solenoids may result in the following three symptoms: REPAIR PROCEDURE: 1. Check Engine Light illuminated 2. Transaxle held in 3rd gear “Fail-safe” 3. Diagnostic Trouble Codes P0740, P0741, P0742, P0743, P0746, P0748, P0750, P0755, P0760, P0765 or P0770 set. NOTE: Do NOT replace the transaxle for solenoid codes listed as open/short. Instead, follow the repair procedure shown below. 1. Using a Hi-Scan Pro, check for DTC in both the “Engine” and “Automatic Transaxle” menus. Record the DTC and description. 2. From the Hi-Scan Pro, select: ^”Hyundai Diagnosis” menu ^”Vehicle ^”Auto Transaxle” menu ^”Actuation Test” ^Press the F1 button (STRI) and test the LR, UD, 2ND, OD, DCC and FSV solenoid (if applicable). Monitor the Hi-Scan and listen for a solenoid sound from the engine compartment. ^If Hi-Scan shows: ^”TEST FAILURE” and no solenoid sound is heard, go to Step 3. ^”COMPLETED” and solenoid sound is heard, the wiring between the PCM/TCM has no open or short circuits. Go to Step 5. 3. Visually check the wiring harness between the TCM and transaxle for a damaged wire or a short circuit to ground. Disconnect the connectors to the solenoids at the transaxle and the PCM/TCM and check for a bent pin or a pin not fully inserted into the connector. If so, repair or replace the ECM control harness, P/N 914XX-XXXXX 4. Check the harness inside the transaxle oil pan for a short circuit to ground. Replace the harness if damage is found or if three or more solenoid DTCs are found in Step 1. (Refer to TSB # 04-40-015 for instructions). Zoom Sized for Print 5. Refer to the DTC recorded in Step 1 and follow the repair procedure shown. SOLENOID REPLACEMENT: 6. Remove the battery. 7. Drain the radiator. Remove the lower radiator hose from the radiator. 8. Drain the ATF. 9. Remove the valve body cover from the transaxle

2004 Dodge Truck RAM 1500 Truck 2WD TIMING CHAIN AND SPROCKETS REMOVAL AND INSTALLATION MANUAL

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TIMING CHAIN AND SPROCKETS Precaution: Timing Chain Replacement CHAIN GUIDES AND TENSIONER ARMS: Replace these parts if grooving in plastic face is more than 1 mm (0.039 inch) deep. If plastic face is severely grooved or melted, the tensioner lube jet may be clogged. The tensioner should be replaced. REMOVAL 1. Disconnect negative cable from battery. 2. Drain cooling system . 3. Remove right and left cylinder head covers. 4. Remove radiator fan shroud. 5. Rotate engine until timing mark on crankshaft damper aligns with TDC mark on timing chain cover (Fig. 132) (# 1 cylinder exhaust stroke) and the camshaft sprocket “V8″ marks are at the 12 o’clock position (Fig. 133). 6. Remove power steering pump. 7. Remove access plugs (2) from left and right cylinder heads for access to chain guide fasteners (Fig. 134). 8. Remove the oil fill housing to gain access to the right side tensioner arm fastener. 9. Remove crankshaft damper and timing chain cover. 10. Collapse and pin primary chain tensioner (Fig. 135). CAUTION: Plate behind left secondary chain tensioner could fall into oil pan . Therefore, cover pan opening. 11. Remove secondary chain tensioners. 12. Remove camshaft position sensor from right cylinder head (Fig. 136). CAUTION: Care should be taken not to damage camshaft target wheel. Do not hold target wheel while loosening or tightening camshaft sprocket. Do not place the target wheel near a magnetic source of any kind. A damaged or magnetized target wheel could cause a vehicle no start condition. CAUTION: Do not forcefully rotate the camshafts or crankshaft independently of each other. Damaging intake valve to piston contact will occur. Ensure negative battery cable is disconnected to guard against accidental starter engagement. 13. Remove left and right camshaft sprocket bolts.

2002 Toyota Truck Tundra Access Cab SR5 2WD Timing Belt Service and Repair Manual

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2002 Toyota Truck Tundra Access Cab SR5 2WD V6-3.4L (5VZ-FE) Copyright © 2008, ALLDATA 9.50 Page 2 REMOVAL 1. REMOVE ENGINE UNDER COVER 2. DRAIN ENGINE COOLANT 3. DISCONNECT UPPER RADIATOR HOSE 4. DISCONNECT PS PUMP FROM ENGINE a. Disconnect the 2 PS air hoses from the air intake chamber and resonator. b. Remove the bolt holding the PS pressure tube clamp to the frame. c. Remove the drive belt. d. Remove the bolt and nut, and disconnect the PS pump from the engine. 5. w/ A/C: DISCONNECT A/C COMPRESSOR FROM ENGINE a. Disconnect the A/C compressor connector. b. Remove the drive belt. c. Remove the 4 bolts, and disconnect the A/C compressor from the engine. 6. LOOSEN FAN WITH FLUID COUPLING AND FAN PULLEYS 7. REMOVE DRIVE BELT FOR GENERATOR 8. REMOVE NO.2 FAN SHROUD 9. REMOVE FAN WITH FLUID COUPLING AND FAN PULLEYS 10. w/ A/C: REMOVE A/C COMPRESSOR BRACKET Remove the 5 bolts and A/C compressor bracket. 11. DISCONNECT UPPER RADIATOR HOSE 12. REMOVE NO.2 TIMING BELT COVER a. Disconnect the camshaft position sensor connector from the No. 2 timing belt cover. b. Disconnect the 4 high-tension cord clamps from the No. 2 timing belt cover. c. Remove the 6 bolts and timing belt cover. 13. REMOVE FAN BRACKET a. Remove the nut and PS pump adjusting strut. b. Remove the bolt, nut and fan bracket. 14. SET NO. 1 CYLINDER AT TDC/COMPRESSION a. Turn the crankshaft pulley and align its groove with timing mark “0″ of the No. 1 timing belt cover. b. Check that the timing marks of the camshaft timing pulleys and No. 3 timing belt cover are aligned. If not, turn the crankshaft pulley 1 revolution (360°) . HINT: When re-using timing belt: Place the matchmarks on the timing belt and camshaft timing pulleys, and place matchmark on timing belt to match the end of the No. 1 timing belt cover. 15. REMOVE TIMING BELT TENSIONER Alternately loosen the 2 bolts, and remove them, the belt tensioner and dust boot. 16. REMOVE TIMING BELT