P1167

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

NOTE: If DTC P1162 is stored the same time as DTC P1167, troubleshoot DTC P1162 first, then troubleshoot DTC P1167 ('02 model only).

1. Reset the ECM/PCM.
2. Start the engine. Wait for at least 80 seconds.

Is DTC P01167 indicated?

YES - Go to step 3.

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at C101 (located under the right side of the dash), C401 (located under left side of the dash), C402 (located under left side of the dash) the A/F Sensor relay, the A/F Sensor (Sensor 1), and the ECM/PCM.

3. Disconnect the AF Sensor 4P connector and ECM/PCM connector A (31 P).




4. Connect ECM/PCM connector terminals A6 and A16 to body ground with a jumper wire.




5. Check for continuity between A/F Sensor (Sensor 1) 4P connector terminals No.1 and No.2 to body ground individually.

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 ECM/PCM (A6 or A16).