• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Folding Mirror Motor Retract Control | B1722 02 | B1722 04 | B1722 01 | -- |
Folding Mirror Motor Extend Control | B1722 02 | B1722 04 | B1722 01 | -- |
The Driver Door module (DDM) and Passenger Door Module (PDM) control the power folding or power extending functions of the outside rearview mirrors. The folding mirror motors are controlled by using bi-directional motor controls through the folding mirror motor retract control circuit and the folding mirror motor extend control circuit.
Outside Rearview Mirror Schematics
Outside Mirror Description and Operation
Control Module References for scan tool information.
⇒ | If the parameter does not cycle between the specified values, replace the DDM. |
• | Control circuit terminal 1 |
• | Control circuit terminal 2 |
⇒ | If the test lamp illuminates, test the appropriate circuit for a short to voltage. |
• | Control circuit terminal 1 |
• | Control circuit terminal 2 |
⇒ | If less than the specified value, test the appropriate circuit for a short to ground. If the circuits test normal, test or replace the rearview mirror. |
⇒ | If not within the specified range, test both control circuits for an open/high resistance. If the circuits test normal, test or replace the rearview mirror. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for DDM or PDM replacement, setup, and programming |