Measure voltage between ECM connector No. 2 terminal No. 45 and body ground. Is there battery voltage?
YES | - | Go to Step 19 .
NO | - | Repair open in the wire between the A/C clutch relay and ECM connector No. 2 terminal No. 45, then go to Step 14 .
Reconnect all connectors. Turn the ignition switch ON (II). Reset the ECM with the HDS. Do the A/C CLUTCH ON/OFF in the INSPECTION MENU with the HDS. Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated?
YES | - | If DTC P0645 is indicated, check for poor connections or loose terminals at the A/C clutch relay and the ECM, then go to Step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO | - | Troubleshooting is complete.■
Update the ECM if it does not have the latest software, or substitute a known-good ECM. Do the A/C CLUTCH ON/OFF in the INSPECTION MENU with the HDS. Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated?
YES | - | If DTC P0645 is indicated, check for poor connections or loose terminals at the A/C clutch relay and the ECM, 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 was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM. ■