B1142

DTC B1141 / B1142 (No. 1141 / No. 1142): Outside Air Temperature (Ambient Temp.) Sensor Circuit Malfunction

Wiring Diagram










DTC Detecting Condition and Possible Cause






Flow Test Description

Step 1: Check whether malfunction is in outside air temperature sensor.

Step 2: Check outside air temperature sensor circuit.

DTC Troubleshooting

1. Outside air temperature sensor check

Turn ignition switch to OFF position.
Disconnect connector from outside air temperature sensor.
Check outside air temperature sensor for resistance referring to Inspection Outside Air Temperature Sensor Inspection (If Equipped).

Is it in good condition?
YES -
Go to Step 2.
NO -
Replace outside air temperature sensor.

2. Outside air temperature sensor circuit check

Disconnect connector from BCM and check for proper terminal connection to BCM connector.
If connections are OK, check outside air temperature sensor circuit for open, short and high resistance.

Is each circuit in good condition?
YES -
Substitute a known-good BCM and recheck.
NO -
Repair circuit.