Pinpoint Test AJ: DTC B1318 Or DTC U3003:16 (Accessory Protocol Interface Module (APIM))

Information and Entertainment System

Pinpoint Test AJ: DTC B1318 Or DTC U3003:16 (Accessory Protocol Interface Module (APIM))

Normal Operation
- DTC B1318 (Battery Voltage Low) - set by the Accessory Protocol Interface Module (APIM) (V1) when the supply voltage on circuit SBP13 (GY/RD) falls below 10 volts for at least 10 seconds during normal operation.
- DTC U3003:16 (Battery Voltage: Circuit Voltage Below Threshold) - set by the APIM (V2) when the supply voltage falls below 10 volts for at least 10 seconds during normal operation.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- High circuit resistance
- APIM



PINPOINT TEST AJ: DTC B1318 OR DTC U3003:16 (APIM)

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

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.

AJ1-AJ5:

AJ5-AJ6: