DTC Troubleshooting: P1248 (37), P2138 (37)

  1. Check for continuity between ECM connector No. 2 terminals No. 9 and No. 22.
Is there continuity?
YES -
Repair short in the wire between ECM connector No. 2 terminals No. 9 and No. 22, then go to Step 13 .
NO -
Go to Step 12 .
  1. Turn the ignition switch OFF.
  1. Replace the accelerator pedal module.
  1. Reconnect all connectors.
  1. Turn the ignition switch ON (II).
  1. Reset the ECM with the HDS.
  1. Press the accelerator pedal to the floor.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P1248 and/or P2138 indicated?
YES -
Check for poor connections or loose terminals at the APP sensor and the ECM, then go to Step 1 .
NO -
Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■
  1. Reconnect all connectors.
  1. Update the ECM if it does not have the latest software, or substitute a known-good ECM.
  1. Turn the ignition switch OFF.
  1. Turn the ignition switch ON (II).
  1. Press the accelerator pedal to the floor.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P1248 and/or P2138 indicated?
YES -
Check for poor connections or loose terminals at the APP sensor and the ECM. If the ECM was updated, substitute a known-good ECM, then go to Step 20 . If the ECM was substituted, go to Step 1 .
NO -
If the ECM was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■