P2552

DTC P2552: Throttle Actuator Control Module Relay Malfunction

1. Turn the ignition switch ON (II).
2. Reset the PCM with the HDS.
3. Do the ETCS TEST in the INSPECTION MENU with the HDS.

Is ETCS SYSTEM OK?

YES - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the throttle actuator control module and PCM.

NO - Go to step 4.

4. Turn the ignition switch OFF.
5. Jump the SCS line with the HDS.
6. Turn the ignition switch ON (II).
7. Disconnect PCM connector A (73P).
8. Disconnect the throttle actuator control module 16P connector.




9. Measure voltage between PCM connector A29 and body ground.

Is there battery voltage?

YES - Repair short in the wire between the PCM and the throttle actuator control module, then go to step 13.

NO - Go to step 10.

10. Turn the ignition switch OFF.
11. Replace the throttle body assembly.
12. Turn the ignition switch ON (II).
13. Reset the PCM with the HDS.
14. Do the idle learn procedure.
15. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P2552 is indicated. Check for poor connections or loose terminals at the throttle body and the PCM, then go to step 1. If any other DTCs are indicated, go to the indicated DTC's troubleshooting.

NO - Troubleshooting is complete.