Hands Free

B222A - Vehicle Line Mismatch

For a complete wiring diagram, refer to.

• When Monitored: With the ignition on.

• Set Condition: The hands free module will receive and monitor the vehicle line message from the PCM and record the vehicle line if different from the last vehicle line.






Test Step 1 - Check for Active DTCs

• Turn the ignition ON.

• With the scan tool, check for active DTCs.

Does the scan tool display this DTC as active?

Yes

• Go to Test Step 2.

No

• If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.

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

Test Step 2 - Check Vehicle Line in PCM

• With the scan tool compare the vehicle line that is programmed into the PCM to the vehicle line of the vehicle.

Does the vehicle line programmed into the PCM match the vehicle?

Yes

• Inspect the wiring and connectors for damage or shorted circuits. If OK, replace and program the hands free module.

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

No

• Ensure the PCM is replaced with the correct vehicle line PCM.

• Replace and program the PCM.

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