DTC Troubleshooting: P1077 (106)
DTC P1077:
 IMT Valve Stuck in High RPM Position
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
  1. Turn the ignition switch to ON (II).
  1. Clear the DTC with the HDS.
  1. Do the IMT TEST in the INSPECTION MENU with the HDS.
Is the result OK?
YES -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the IMT actuator and the ECM/PCM.■
NO -
Go to Step 4 .
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the IMT actuator 5P connector.
  1. Turn the ignition switch to ON (II).
  1. Measure the voltage between IMT actuator 5P connector terminal No. 1 and body ground.
Is there about 5 V?
YES -
Go to Step 12 .
NO -
Go to Step 8 .
  1. Turn the ignition switch to LOCK (0).
  1. Jump the SCS line with the HDS.
  1. Disconnect ECM/PCM connector B (44P).