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1998 Pontiac Grand Prix DTC P0753 1-2 Shift Solenoid Circuit Electrical Repair Manual

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Filed Under (Pontiac Manuals) by admin on 07-06-2012

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Test Description The numbers below refer to the step numbers on the diagnostic table. 6. This step isolates the fault between the engine harness and the transmission harness. 8. This step verifies that circuit 1222 is neither open nor shorted to power. 11. This step verifies that the 1-2 shift solenoid has neither shorted across its windings nor increased its resistance. DTC P0753 1-2 Shift Solenoid Circuit– Electrical Step Action Value(s) Yes No 1 Was the Powertrain On-Board Diagnostic (OBD) System Check performed? — Go to Step 2 Go to Powertrain On Board Diagnostic (OBD) System Check 2 1. Install the Scan Tool . 2. Turn the ignition switch to the RUN position. Important Before clearing the DTCs, use the scan tool in order to record the Freeze Frame and Failure Records for reference. The Clear Info function will erase the data. 3. Record the DTC Freeze Frame and Failure Records, then clear the DTC. — Go to Are DTCs P0758, P1860 or P0740 set? Step 3 Go to Step 6 3 1. Remove the TCC fuse. 2. Inspect the fuse for an open. Was a condition found and corrected? — Go to Step 4 Go to Step 5 4 Repair short to ground in engine harness circuit 1339 or transmission harness circuit 839. Refer to General Electrical Diagnosis Procedures . Was a condition found and corrected? — Go to Step 21 — 5 Repair the open in engine harness circuit 1339 or transmission harness circuit 839. Refer to General Electrical Diagnosis Procedures . Was a condition found and corrected? — Go to Step 21 — 6 1. Turn the ignition switch OFF. 2. Disconnect the Automatic Transmission 7-way connector. 3. Install the J 38835 Transmission Electrical Jumper on the engine harness connector. 4. Connect a test lamp from terminal E to terminal A of the jumper using a J 35616-A Connector Test Adapter Kit. Important Additional DTCs will set. 5. With the engine OFF, turn the ignition ON. Is the test lamp ON? — Go to Step 7 Go to Step 8 7 Inspect engine harness circuit 1222 for a short to ground. Refer to General Electrical Diagnosis Procedures . Was a condition found and corrected? — Go to Step 21 Go to Step 20 8 Using the scan tool command the 1-2 solenoid ON and OFF three times. Does the test lamp cycle ON and OFF as commanded? — Go to Step 11 Go to Step 9 9 Inspect engine harness circuit 1222 for an open. Refer to General Electrical Diagnosis Procedures . Was a condition found and corrected? — Go to Step 21 Go to Step 10 10 Inspect engine harness circuit 1222 for a short to power. Refer to General Electrical Diagnosis Procedures . Was a condition found and corrected? — Go to Step 21 Go to Step 19 11 1. Turn the ignition OFF. 2. Disconnect the J 38835 Transmission Electrical Jumper from the engine harness. 3. Connect the J 38835 Transmission Electrical Jumper to the Automatic Transmission 7-way connector. 4. Connect a J 39200 Digital Multimeter (DMM) from 19 ohms to 31 ohms terminal E to terminal A of the jumper. Is the measured resistance within the specified range? Go to Step 15 Go to Step 12 12 Is the resistance greater than the specified value? 31 ohms Go to Step 13 Go to Step 15 13 Inspect the transmission harness RED wire circuit 839 and the LT GRN wire circuit 1222 for an open. Refer to General Electrical Diagnosis Procedures . Was a condition found? — Go to Step 14 Go to Step 18 14 Replace the Automatic Transmission Wiring Harness. Refer to Solenoids and Wiring Harness Replacement . Is the replacement complete? — Go to Step 21 — 15 Connect the J 39200 Digital Multimeter from terminal A of the jumper to ground. Is the resistance less than the specified value? 100 ohms Go to Step 16 Go to Step 18 16 Inspect the transmission harness LT GRN wire circuit 1222 for a short to ground or short to power. Refer to General Electrical Diagnosis Procedures . Was a condition found? — Go to Step 17 Go to Step 18 17 Replace the Automatic Transmission Wiring Harness. Refer to Solenoids and Wiring Harness Replacement . Is the replacement complete? — Go to Step 21 — 18 Replace the 1-2 Shift Solenoid Valve Assembly. Refer to Solenoids and Wiring Harness Replacement . Is the replacement complete? — Go to Step 21 — 19 Inspect PCM connector C1 (Blue) for bent, damaged or backed out connector pins. Was a condition found and corrected? — Go to Step 21 Go to Step 20 20 Replace the PCM. Refer to PCM Replacement/Programming . Is the replacement complete? — Go to Step 21 — 21 In order to verify your repair, perform the following procedure: 1. Using the scan tool, clear DTCs. 2. Operate the vehicle under the following conditions: { The engine speed is more than 500 RPM. { The vehicle is not in fuel shut off. { System voltage is 10-16 volts. { Drive the vehicle through the 1-2 shift. { When the 1-2 SS Valve Assembly is commanded ON, the voltage decreases to zero. { When the 1-2 SS Valve Assembly is commanded OFF, the voltage increases to B+. { All conditions are met for 5 seconds.

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2001-2003 RAV4 HARSH SHIFT AND/ ORM.I.L. “ON”DTC P0750, P0755, P0758, AND/ ORP1760 REPAIR MANUAL

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Filed Under (Toyota Manuals) by admin on 10-02-2012

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HARSH SHIFT AND/ORM.I.L. “ON”DTCP 0750, P0755, P0758, AND/ORP1760 –TC 002-06 Revised March3,2006 Page 2of3 PREVIOUS PART NUMBER CURRENT PART NUMBER PART NAME QTY 89661–42650 1 89661–42651 89661–42653 1 89661–42652 1 89661–42660 1 89661–42661 89661–42663 Engine Control Module (ECM) 1 89661–42662 Engine Control Module (ECM) 1 89661–42810 89661–42811 1 89661–42820 89661–42821 1 89661–42880 Same 1 89661–42890 Same 1 ITEM NO. SPECIAL SERVICE TOOLS (SSTs) PART NUMBER QTYDRW** 1 Toyota Diagnostic Tester Kit* NOTE: SAll components from this kit/set are required S12 MegabyteDiagnostic Tester Program Card (P/N 01002593–005) with version 13.3aSoftware (or later) is required TOY220036 1 9 *Essential SSTs. **Referstodrawer number in SST Storage System. NOTE: Additional Diagnostic Tester Kits, Program Cards, or other SST smaybeorderedby callingSPX/OTC at 1-800-933-8335. 1. If the vehicle is currently exhibiting a harsh shift condition and/or M.I.L. “ON”with DTCP0750, P0753, P0755, P0758, and/or P1760 stored, refer to the Technical Information System (TIS), 2001–2003 model year RAV4 Repair Manual: S4WD: Diagnostics/Automatic Transaxle (U140f): Problem Symptoms Table S2WD: Diagnostics/Automatic Transaxle (U142E): Problem Symptoms Table NOTE: In some instances the vehicle must be operated at least 30 minutes before the condition can be duplicated. 2. If the vehicle exhibits the above condition, replace the ECM (PCM). Parts Information Required SSTs

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