Test J: DTCs B29AF, B29B0, B29B1 and B29B2 - Fire Suppression Manual Switch Failure
PINPOINT TEST J: DTCs B29AF, B29B0, B29B1 AND B29B2 - FIRE SUPPRESSION MANUAL SWITCH FAILURENormal Operation
The fire suppression module checks the fire suppression manual switch circuits for faults. If the fire suppression module detects an open or a short to ground on circuit 2315 (BK/PK), it stores DTC B29AF in memory and illuminates the fire suppression system indicator. If the fire suppression module detects a short to voltage on circuit 2315 (BK/PK), it stores DTC B29B0 in memory and illuminates the fire suppression system indicator. If the fire suppression module detects an open or a short to voltage on circuit 2314 (LB/BK), it stores DTC B29B1 in memory and illuminates the fire suppression system indicator. If the fire suppression module detects a short to ground on circuit 2314 (LB/BK), it stores DTC B29B2 in memory and illuminates the fire suppression system indicator.
DTC B29AF (Fire Suppression Manual Activation Switch High Side Circuit Failure) - sets when the fire suppression module detects either an open or a short to ground on circuit 2315 (BK/PK). This DTC will cause the fire suppression system indicator to illuminate.
DTC B29B0 (Fire Suppression Manual Activation Switch High Side Circuit Short to Battery) - sets when the fire suppression module detects a short to voltage on circuit 2315 (BK/PK). This DTC will cause the fire suppression system indicator to illuminate.
DTC B29B1 (Fire Suppression Manual Activation Switch Low Side Circuit Failure) - sets when the fire suppression module detects either an open or a short to voltage on circuit 2314 (LB/BK). This DTC will cause the fire suppression system indicator to illuminate.
DTC B29B2 (Fire Suppression Manual Activation Switch Low Side Circuit Short to Ground) - sets when the fire suppression module detects a short to ground on circuit 2314 (LB/BK). This DTC will cause the fire suppression system indicator to illuminate.
This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Fire suppression manual switch
- Fire suppression manual switch wiring harness
- Fire suppression module
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