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 .
Replace the knock sensor. Reconnect all connectors. Turn the ignition switch ON (II). Reset the ECM/PCM with the HDS. Do the ECM/PCM idle learn procedure. Hold the engine speed at 3,000−4,000 rpm (min −1 ) for at least 10 seconds. 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 .
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.
Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM. Hold the engine speed at 3,000−4,000 rpm (min −1 ) for at least 10 seconds. 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. ■