P0700

P0700 - Transmission Control System, MIL Request

For wiring diagrams, refer to.

• When Monitored: With the ignition on.

• Set Condition: The PCM receives a CAN Bus message indicating that a DTC is present in the TCM.






• Always perform the pre-diagnostic troubleshooting procedure before proceeding. Refer to => Non-DTC Based Diagnostics. Pre-Diagnostic Troubleshooting Procedure

Test Step 1 - DTC is Active

• Diagnose and repair any other DTCs that are set in the PCM before continuing.

• This DTC will set in the PCM to indicate that a DTC is set in the TCM.

• When all repairs have been completed, clear DTCs in the PCM and TCM.

• Turn the ignition ON.

• With the scan tool, select view DTCs in the PCM.

Is the status active for this DTC?

Yes

• Go to Test Step 2 => [ Test
Step 2 - DTCS Present in the Transmission Control Module ]

No

• Refer to the checking for an intermittent DTC diagnostic procedure. Refer to => Non-DTC Based Diagnostics. Checking for an Intermittent DTC

Test Step 2 - DTCS Present in the Transmission Control Module

• If the scan tool is unable to communicate with the TCM, or if there are related communication DTCs present, refer to the Communication Category and perform the appropriate diagnostic procedure.

• Turn the ignition ON.

• With the scan tool, select view DTCs in the TCM.

Are there any DTCs present in the TCM?

Yes

• Refer to the Transmission Category and perform the appropriate diagnostic procedure.

No

• Go to Test Step 3 => [ Test
Step 3 - PCM ]

Test Step 3 - PCM

• Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the TCM and the PCM.

• Look for any chafed, pierced, pinched, or partially broken wires.

• Look for broken, bent, pushed out or corroded terminals.

• Refer to any technical service bulletins that may apply.

Were any problems found?

Yes

• Repair as necessary.

• Perform the PCM Verification Test. Refer to => Non-DTC
Based Diagnostics. PCM Verification Test

No

• Replace and program the PCM.

• Perform the PCM Verification Test. Refer to => Non-DTC
Based Diagnostics. PCM Verification Test