P1416

DTC P1416: Air Pump Electrical Current Sensor Circuit High Voltage

NOTE: Before you troubleshoot, record all freeze data and review the general troubleshooting information.

1. Reset the ECM.
2. Turn the ignition switch ON (II).
3. Check for a DTC with a scan tool or the HDS.

Is DTC P1416 indicated?

YES - Go to step 4.

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the air pump electrical current sensor and at the ECM.

4. Turn the ignition switch OFF.
5. Disconnect the air pump electrical current sensor 3P connector.
6. Turn the ignition switch ON (II).




7. Measure voltage between air pump electrical current sensor 3P connector terminals No. 1 and No. 2.

Is there about 5 V?

YES - Replace the air pump electrical current sensor.

NO - Go to step 8.




8. Measure voltage between ECM connector terminals C18 and C28.

Is there about 5 V?

YES - Repair open in the wire between the ECM (C18) and the air pump electrical current sensor.

NO - Substitute a known-good ECM and recheck. If voltage is normal, replace the original ECM.