DTC Troubleshooting: P0340 (57)
DTC P0340:
 CMP Sensor A No Signal
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
  1. Turn the ignition switch ON (II).
  1. Clear the DTC with the HDS.
  1. Start the engine.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0340 indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at CMP sensor A and the ECM.■
  1. Turn the ignition switch OFF.
  1. Disconnect CMP sensor A 3P connector.
  1. Turn the ignition switch ON (II).
  1. Measure voltage between CMP sensor A 3P connector terminal No. 3 and body ground.
Is there battery voltage?
YES -
Go to Step 9 .
NO -
Repair open in the wire between CMP sensor A and the No. 3 ALTERNATOR (10 A) fuse then go to Step 18 .