P1167

DTC P1167: A/F Sensor (Sensor 1) Heater Circuit Malfunction

NOTE: If DTC P1162 is stored at the same time as DTC P1187, troubleshoot DTC P1162 first, then troubleshoot DTC P1167.

1. Reset the ECM.
2. Start the engine.

Is DTC P1298 indicated?

YES - Go to step 3.

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the A/F sensor relay, at the A/F sensor (Sensor 1), and at the ECM.

3. Turn the ignition switch OFF.
4. Disconnect the A/F sensor 4P connector and ECM connector A (31P).




5. Connect the A/F sensor (Sensor 1) 4P connector terminals No.2 and No.1 with a jumper wire.




6. Check for continuity between ECM connector terminals A6 and A16.

Is there continuity?

YES - Replace the A/F sensor (Sensor 1).

NO - Repair open in the wire between the A/F sensor (Sensor 1) and the ECM (A6 or A16).