1. Check for continuity between ECM/PCM connector terminal A1 and body ground.

Is there continuity?

YES | - | Go to Step 13 .
NO | - | Repair open in the wire between the ECM/PCM (A1) and the knock sensor, then go to Step 14 .

1. Replace the knock sensor.

1. Reconnect all connectors.

1. Turn the ignition switch ON (II).

1. Reset the ECM/PCM with the HDS.

1. Do the ECM/PCM idle learn procedure.

1. Hold the engine speed at 3,000−4,000 rpm (min −1 ) for at least 10 seconds.

1. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.

Is DTC P0325 indicated?

YES | - | Go to Step 21 .
NO | - | Go to Step 20 .

1. Monitor the OBD STATUS for DTC P0325 in the DTCs MENU with the HDS.

Does the screen indicate PASSED?

YES | - | Troubleshooting is complete.■
NO | - | If the screen indicates FAILED, go to Step 1 and recheck. If the screen indicates NOT COMPLETED, then go to Step 17 and recheck.

1. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM.

1. Hold the engine speed at 3,000−4,000 rpm (min −1 ) for at least 10 seconds.

1. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES | - | If DTC P0325 is indicated, check for poor connections or loose terminals at the knock sensor and the ECM/PCM, then go to Step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO | - | If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM. ■