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Manual Three Zone Temperature Control






U0169-Lost Communication With Sunroof Control Module

For a complete wiring diagram, refer to.

When Monitored: Continuously when the ignition is on. Battery voltage between 10 and 16 volts. Ignition Off Draw (IOD) fused installed. Totally Integrated Power Module (TIPM) is configured correctly.

Set Condition: Bus messages not received from the Sunroof Control Module for approximately two to five seconds.






Test Step 1 - VERIFY DTC IS ACTIVE

Make sure the IOD fuse is installed and the battery is fully charged before proceeding.

Turn the ignition on.

With the scan tool, read active DTCs.

Is this DTC active?

Yes

Refer to => Electrical System DTC Based Diagnostics and perform the U0169-Lost Communication with Sunroof Control Module diagnostic procedure.

No

Refer to => Non-DTC Based Diagnostics and perform the Stored Lost Communication DTCs diagnostic procedure. Stored Lost Communication DTCs