Pinpoint Test A: DTC B1317

Anti-Lock Control - Three-Channel

Pinpoint Tests

Pinpoint Test A: DTC B1317

Refer to Wiring Diagram Set 42, Vehicle Dynamic Systems for schematic and connector information. Diagrams By Number

Normal Operation

The operating voltage required to supply the ABS module, hydraulic pump and isolation valves is in a range between 9 and 16 volts and vehicle speed is be greater than 5 km/h (3 mph).

- DTC B1317 (Battery Voltage High) - a continuous and on-demand DTC that sets if the voltage supplied to the ABS module is above 16 volts during the ABS module self-test or normal operation and vehicle speed is greater than 5 km/h (3 mph).

This pinpoint test is intended to diagnose the following:
- Charging system concern
- ABS module

PINPOINT TEST A: DTC B1317

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

NOTE: DTC B1317 can set if the vehicle has been recently jump started, the 12-volt battery has been recently charged or the 12-volt battery has been discharged. The 12-volt battery may become discharged due to excessive load(s) on the charging system from aftermarket accessories or if the battery has been left unattended with the accessories on.

NOTE: Carry out a thorough inspection and verification before proceeding with the pinpoint test. Refer to Inspection and Verification. Inspection and Verification

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A1 CHECK FOR DTC B1317, B1676, P0563 (PCM) OR U3003:17 SET IN OTHER MODULES

- Ignition ON.
- Enter the following diagnostic mode on the scan tool: ABS Module Self-Test.
- Is DTC B1317, B1676, P0563 (PCM) or U3003:17 set in more than one module?

Yes
REFER to Charging System Testing and Inspection to diagnose an overcharging condition.

No
GO to A2.

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A2 CHECK FOR BATTERY VOLTAGE

- Turn off all interior/exterior lights and accessories.
- Start and run the engine at approximately 2,000 rpm for 3 minutes while monitoring the battery voltage.
- Does the battery voltage rise to 15.5 volts or higher ?

Yes
REFER to Charging System Testing and Inspection to diagnose an overcharging condition.

No
GO to A3.

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A3 RECHECK FOR DTC B1317

- Turn the engine off.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self-Test.
- Clear the DTCs.
- Carry out the ABS module self-test
- Is DTC B1317 present?

Yes
INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module Service and Repair. TEST the system for normal operation.

No
The system is operating normally at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.

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