B1318

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PINPOINT TEST 2: DTC C1186-ABS POWER RELAY OUTPUT OPEN CIRCUIT AND B1317 AND B1318- BATTERY VOLTAGE HIGH/ BATTERY VOLTAGE LOW

Normal Operation

Fused battery voltage is sent from battery junction box (BJB) fuses 33 (30A) and 17 (40A) to the anti-lock brake system (ABS) module along circuits (W/R) and (R) respectively. Fused ignition voltage is sent from smart junction box (SJB) fuse 20 (10A) to the ABS module along circuit (Y/V) and 2 grounds are provided for the module along circuit (B). Operating voltage for the ABS module is normally between 9 and 19 volts.

This pinpoint test is intended to diagnose the following:
- Fuses
- Wiring, terminals or connectors
- Vehicle battery
- Charging system
- ABS module

CAUTION:Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.
NOTE:DTC B1317 and B1318 are generated when the anti-lock brake system (ABS) module detects system voltage is less than 9 volts or greater than 19 volts for more than 1 second.

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