Diagnostic Procedure
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TEST REFERENCE - P0706-CHECK SHIFTER SIGNAL
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 |
NOTE:
Always perform diagnostics with a fully charged battery to avoid false symptoms. With the DRBIII®, read the engine DTC's. Check and repair all Engine DTC's prior to performing Transmission symptom diagnostics.With the DRBIII®, read Transmission DTC's. Record all DTC's and 1 Trip Failures.
NOTE:
Diagnose 1 Trip Failures as a fully matured DTC. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.Repair as necessary.For Gear Ratio DTC's, check and record all CVI's.Most DTC's set on start up but some must be set by driving the vehicle to ensure that all diagnostic monitors have run.
NOTE:
Verify flash level of Powertrain Controller. Some problems are corrected by software upgrades to the Transmission and Engine Systems.
NOTE:
Due to the integration of the Powertrain and Transmission control modules - if a controller flash is performed it is necessary to perform QUICK LEARN and the DRIVE LEARN PROCEDURES . Failure to do so may result in shift quality complaints.
NOTE:
Check for applicable TSB's that may apply. Perform this procedure prior to Symptom diagnosis.ContinueGo To 2 |
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| 2 | With the DRBIII®, perform the Shift Lever Position Test. Select the test outcome from the following: Test passes: Go To 3 Test fails with Error Code: Go To 4 Test fails without Error Code: Go To 23 |
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| 3 | The conditions necessary to set this DTC are not present at this time. With the DRBIII®, check the EATX DTC EVENT DATA to help identify the conditions in which the DTC was set.
NOTE:
If the Transmission Solenoid/TRS connector is disconnected while the ignition key is in the ON or OFF position, code P0706 will be set.
NOTE:
In this case, the EATX DTC Event Data may show engine speed as zero, all TRS pin states as OPEN, all pressure switches as OPEN or CLOSED (all switches in the same state), and/or line pressure as zero.
NOTE:
Ensure the Transmission Solenoid/TRS connector is properly reconnected. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorts and open circuits. Were there any problems found? Yes --> Repair as necessary. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Test Complete. |
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| 4 | Turn the ignition off to the lock position. Remove the Starter Relay.
NOTE:
Failure to remove the Starter Relay can cause a TCM - No Response condition. Install Transmission Simulator Miller tool #8333. Ignition on, engine not running. With the DRBIII®, perform the Shift Lever Position Test. When the DRBIII® instructs you to put the Gear Selector in a particular position, you must do so using the selector switch on the Transmission Simulator. The LED for the gear position in question must be illuminated on the Transmission Simulator prior to pressing "ENTER" on the DRBIII®.
NOTE:
When the DRBIII® requests the O/D off button be depressed, you must use the O/D OFF button in the vehicle or you will fail the Shift Lever Position Test with a Shift Lever Error Code 11. Did the Shift Lever Position test pass? Yes --> Go To 5 No --> Go To 6
NOTE:
Make sure to disconnect the Transmission Simulator and reconnect all disconnected connectors before proceeding.
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| 5 | Remove the Transmission Valve Body assembly for inspection, per the Service Information. Is there significant metal debris on the manual valve code plate? Yes --> Repair internal transmission per the Service Information. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Replace the Transmission Solenoid Assembly per the Service Information. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . |
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| 6 | With the DRBIII®, observe the TRS sense circuits on the Input/Output screen. (C1 thru C5) Move the shift lever from P to L, pausing momentarily in each gear position. Watch for one of the circuits to not change state. Pick the one that did not change state. TRS T1 sense (C4) Go To 7 TRS T2 sense (C5) Go To 10 TRS T3 sense (C3) Go To 13 TRS T41 sense (C1) Go To 16 TRS T42 sense (C2) Go To 19 |
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| 7 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Measure the resistance of the TRS T1 Sense circuit from the TCM harness connector to the Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 ohms? Yes --> Repair the TRS T1 Sense circuit for an open. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 8 |
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| 8 | Turn the ignition off to the lock position. Disconnect the TCM harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Measure the resistance between ground and the TRS T1 Sense circuit. Is the resistance below 5.0 ohms? Yes --> Repair the TRS T1 Sense circuit for a short to ground. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 9 |
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| 9 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Ignition on, engine not running. Measure the voltage of the TRS T1 Sense circuit. Is the voltage above 0.5 volt? Yes --> Repair the TRS T1 Sense circuit for a short to voltage. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 22 |
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| 10 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Measure the resistance of the TRS T2 Sense circuit from the TCM harness connector to the Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 ohms? Yes --> Repair the TRS T2 Sense circuit for an open. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 11 |
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| 11 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Measure the resistance between ground and the TRS T2 Sense circuit. Is the resistance below 5.0 ohms? Yes --> Repair the TRS T2 Sense circuit for a short to ground. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 12 |
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| 12 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Ignition on, engine not running. Measure the voltage of the TRS T2 Sense circuit. Is the voltage above 0.5 volt? Yes --> Repair the TRS T2 Sense circuit for a short to voltage. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 22 |
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| 13 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Measure the resistance of the TRS T3 Sense circuit from the TCM harness connector to the Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 ohms? Yes --> Repair the TRS T3 Sense circuit for an open. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 14 |
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| 14 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Measure the resistance between ground and the TRS T3 Sense circuit in the TCM harness connector. Is the resistance below 5.0 ohms? Yes --> Repair the TRS T3 Sense circuit for a short to ground. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 15 |
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| 15 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Ignition on, engine not running. Measure the voltage of the TRS T3 Sense circuit at the TCM harness connector. Is the voltage above 0.5 volt? Yes --> Repair the TRS T3 Sense circuit for a short to voltage. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 22 |
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| 16 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Measure the resistance of the TRS T41 Sense circuit from the TCM harness connector to the Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 ohms? Yes --> Repair the TRS T41 Sense circuit for an open. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 17 |
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| 17 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Measure the resistance between ground and the TRS T41 Sense circuit. Is the resistance below 5.0 ohms? Yes --> Repair the TRS T41 Sense circuit for a short to ground. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 18 |
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| 18 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Ignition on, engine not running. Measure the voltage of the TRS T41 Sense circuit. Is the voltage above 0.5 volt? Yes --> Repair the TRS T41 Sense circuit for a short to voltage. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 22 |
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| 19 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Measure the resistance of the TRS T42 Sense circuit from the TCM harness connector to the Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 ohms? Yes --> Repair the TRS T42 Sense circuit for an open. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 20 |
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| 20 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Measure the resistance between ground and the TRS T42 Sense circuit. Is the resistance below 5.0 ohms? Yes --> Repair the TRS T42 Sense circuit for a short to ground. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 21 |
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| 21 | Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Disconnect the TCM harness connector.
NOTE:
Check connectors - Clean/repair as necessary. Ignition on, engine not running. Measure the voltage of the TRS T42 Sense circuit. Is the voltage above 0.5 volt? Yes --> Repair the TRS T42 Sense circuit for a short to voltage. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . No --> Go To 22 |
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| 22 | Using the schematics as a guide, inspect the wiring and connectors. Repair as necessary. Pay particular attention to all power and ground circuits. If there are no possible causes remaining, view repair. Repair Replace the Transmission Control Module per the Service Information. WITH THE DRBIII® PERFORM QUICK LEARN . Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . |
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| 23 | If there are no possible causes remaining, view repair. Repair Adjust the shifter per the Service Information. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 . |
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