B1A68:11

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PINPOINT TEST 23: DTCs B1A68:11 AND 15 - HYBRID

See the Tribute Wiring Diagram for schematic information.

Normal Operation

Under normal operation, the ambient temperature sensor receives a ground from the HVAC module through circuit (GY/L). A 5-volt reference voltage is supplied to the ambient air temperature sensor from the HVAC module through circuit (Y/G).

- DTC B1A68:11 (Ambient Temperature Sensor: Circuit Short to Ground) - The module senses excessive voltage drop on the sensor reference voltage circuit, indicating a short directly to ground.
- DTC B1A68:15 (Ambient Temperature Sensor: Circuit Short to Battery or Open) - The module senses no voltage drop on the sensor reference voltage circuit, indicating a short directly to voltage or an open circuit.

Possible Causes
- Wiring, terminals or connectors
- Ambient air temperature sensor
- HVAC module

Diagnostic Procedure

Step 1-Step 2:

Step 3-Step 7:

Step 8: