Test B

PINPOINT TEST B: DTC B2796, DTC B2795, DTC B2426 OR DTC B2427 - SOLAR RADIATION SENSOR OPEN CIRCUIT OR SHORT TO GROUND

Test B1-B2:

Test B3-B4:

Test B4-B5:

Test B5-B6:

Normal Operation
Under normal operation, the solar radiation sensor receives a ground through circuit 3051 (BK/YE). A 5-volt reference voltage is supplied to the solar radiation sensor from the EATC module through circuit 468 (BN) (LH) and circuit 476 (BN/YE) (RH).

Possible Causes
- An open in circuit 3051 (BK/YE), 476 (BN/YE) or 468 (BN).
- A short to ground in circuit 468 (BN) or 476 (BN/YE).
- Solar radiation sensor.
- EATC module.