Pinpoint Test AV: DTC B1317

Seats

Pinpoint Test AV: DTC B1317

Refer to Wiring Diagram Set 123 (Fusion/Milan/MKZ, Fusion Hybrid, Milan Hybrid, MKZ Hybrid), Memory Seats for schematic and connector information. Diagrams By Number

Normal Operation

The Driver Seat Module (DSM) monitors the voltage from the battery to determine if it goes above or below specific thresholds.

- DTC B1317 (Battery Voltage High) - a continuous memory or on-demand DTC that sets when the DSM detects battery voltage above 15.5 volts on circuit SBB32.

This pinpoint test is intended to diagnose the following:

- Charging system concern
- DSM


PINPOINT TEST AV: DTC B1317

NOTE: DTC B1317 may be stored in the module memory due to previous battery charging or vehicle jump starting events.

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AV1 CHECK FOR DTC B1317, B1676 OR P0563 SET IN OTHER MODULES

- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Retrieve All CMDTCs Self-Test.
- Retrieve the continuous memory DTCs from all modules.
- Is DTC B1317, B1676 or P0563 (PCM) set in more than one module?

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

No
GO to AV2.

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AV2 CHECK THE 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 AV3.

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AV3 RECHECK FOR DTC B1317

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

Yes
INSTALL a new DSM. REFER to Driver Seat Module (DSM) 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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