Pinpoint Test AH: DTC B1317 (Rear Entertainment Module (RETM))

Information and Entertainment System

Pinpoint Tests

Pinpoint Test AH: DTC B1317 (Rear Entertainment Module (RETM))

Normal Operation
- DTC B1317 (Battery Voltage High) - set by the Rear Entertainment Module (RETM) when the supply voltage is greater than 16.0 volts for more than 10 seconds during normal operation.

This pinpoint test is intended to diagnose the following:

- Charging system concern
- RETM



PINPOINT TEST AH: DTC B1317 (RETM)

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

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AH1 CHECK FOR HIGH VOLTAGE DTCs SET IN OTHER MODULES


- Ignition ON.
- Retrieve all continuous DTCs from all modules.
- Is DTC B1317, B1676, P0563 (PCM), or U3003:17 set in more than one module?

Yes
REFER to Charging System to diagnose an overcharging condition.

No
GO to AH2.

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AH2 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 to diagnose an overcharging condition.

No
GO to AH3.

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AH3 RECHECK FOR DTC B1317


- Ignition OFF.
- Ignition ON.
- Clear the RETM DTCs.
- Repeat the RETM self-test.
- Is DTC B1317 still present?

Yes
INSTALL a new RETM. REFER to Rear Entertainment Module (RETM) Service and Repair. TEST the system for normal operation.

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

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