Pinpoint Test G: DTCs B106E and B106F

Rear View Mirrors - Exterior

Pinpoint Tests

Pinpoint Test G: DTCs B106E and B106F

Refer to Wiring Diagram Set 124, Power Mirrors for schematic and connector information. Diagrams By Number

Normal Operation

The Driver Seat Module (DSM) controls the output of the exterior mirrors using solid state drivers. A DTC sets when an overload occurs on any of these drivers. The module also tracks the number of repetitive faults on each of these circuits. The module compares this number of overloads to 3 progressive thresholds established for each circuit. If the 3 thresholds have not been exceeded, then the DTC of the affected circuit can be cleared by eliminating the fault, then clearing the DTCs and running the self-test. At the point that each of the first 2 thresholds are exceeded, DTC B106E sets along with the DTC relating to the affected circuit. Once the final threshold has been exceeded, the affected output is permanently disabled and DTC B106F sets along with DTC B1342, at which time the DSM must be replaced.

- DTC B106E (Solid State Driver Disabled Due to Short Circuit) - sets when the DSM has disabled a circuit due to a repetitive fault causing a circuit overload. A corresponding DTC for the circuit in question also sets.
- DTC B106F (Module Disabled Due to External Fault) - sets when one or more output functions are permanently disabled due to a repetitive circuit overload fault. DTC B106F sets with DTC B1342. When DTC B106F is present, a new DSM must be installed after the fault condition has been corrected.

This pinpoint test is intended to diagnose the following:
- Output circuit short to ground or voltage
- DSM

PINPOINT TEST G: DTCs B106E AND B106F

NOTICE: Use the correct probe adapter(s) from the Flex Probe Kit when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

NOTICE: If DTC B106F is present, correct the fault condition prior to installing a new DSM. Failure to correct the fault condition first may cause damage to the new DSM, resulting in a repeat repair.

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G1 REVIEW THE DSM DTCs FROM THE SELF-TEST

- Check the recorded results from the DSM self-test.
- Are DTCs B106F and B1342 present?

Yes
CORRECT the cause of any other DTCs present first. When other DTCs are corrected, INSTALL a new DSM. For additional information, REFER to Seating Service and Repair. TEST the system for normal operation.

No
GO to G2.

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G2 REPAIR OTHER DTCs

- Repair the cause of any DTCs present, other than DTC B106E. Refer to the Driver Seat Module (DSM) DTC Chart. Driver Seat Module (DSM) DTC Chart
- Clear the DTCs.
- Carry out the DSM self-test.
- Is DTC B106E still present?

Yes
The fault causing the output state to be disabled is still present. REPAIR the cause of the concern. CLEAR the DTCs. REPEAT the self-test.

No
The system is operating correctly at this time. The concern was caused by a fault in one of the output circuits.

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