B1570

DTC B1560, B1565, B1570, or B1575

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.



DTC Descriptors
DTC B1560 02
- Mirror Right Switch Circuit Short to Ground

DTC B1565 02
- Mirror Left Switch Circuit Short to Ground

DTC B1570 02
- Mirror Up Switch Circuit Short to Ground

DTC B1575 02
- Mirror Down Switch Circuit Short to Ground




Circuit/System Description

The outside mirror control switch is contained within the driver door switch assembly (DDSA). The DDSA sends this message via the serial data circuit to the driver door module (DDM) to move the left mirror or the passenger front door module (PDM) to move the right mirror. The DDM or PDM then applies voltage and ground to the appropriate circuits of the appropriate mirror motor to move the mirror vertically and/or horizontally.


Conditions for Running the DTC

Battery voltage must be between 9-16 volts.


Conditions for Setting the DTC

A power mirror switch input to the DDSA is active for more than 30 seconds.


Action Taken When the DTC Sets

The DDSA deactivates and ignores inputs from the failed switch contacts and stops sending messages for this switch to the DDM or PDM. The DDSA will continue to respond to inputs from other non-failed switch contacts.


Conditions for Clearing the DTC

* A current DTC will clear when the fault is no longer present.
* A history DTC will clear after 40 malfunction-free ignition cycles.



Reference Information
Schematic Reference

Outside Rearview Mirror Schematics (Outside Rearview Mirror Schematics)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Outside Mirror Description and Operation (Outside Mirror Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool References

Control Module References (Programming and Relearning) for scan tool information.


Circuit/System Verification

1. Verify that DTCs B1560, B1565, B1570, or B1575 are not set.

If any of the DTCs are set, attempt to clear with a scan tool. If any of the DTCs reset, replace the DDSA.



Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.


Front Side Door Window Switch Replacement (Front Side Door Window Switch Replacement)