DTC Troubleshooting: P0108 (3)
DTC P0108:
 MAP Sensor Circuit High Voltage
NOTE: Before you troubleshoot, record all freeze data and review the general troubleshooting information.
  1. Turn the ignition switch ON (II).
  1. Check the MAP SENSOR in the DATA LIST with the HDS.
Is about 4.90 V or higher indicated?
YES -
Go to Step 3 .
NO -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the MAP sensor/IAT sensor 2 and the ECM.■
  1. Check for Temporary DTCs or DTCs with the HDS.
Are DTC P0098 and P0108 indicated at same time?
YES -
Go to Step 4 .
NO -
Go to Step 14 .
  1. Turn the ignition switch OFF.
  1. Disconnect the MAP sensor/IAT sensor 2 4P connector.
  1. Connect MAP sensor/IAT sensor 2 4P connector terminals No. 1 and No. 4 with a jumper wire.
  1. Turn the ignition switch ON (II).
  1. Check the MAP SENSOR in the DATA LIST with the HDS.
Is about 4.90 V or higher indicated?
YES -
Go to Step 9 .
NO -
Go to Step 24 .
  1. Turn the ignition switch OFF, and wait 2 minutes.
  1. Remove the jumper wire from the MAP sensor/IAT sensor 2 4P connector.
  1. Disconnect ECM connector No. 1 (96P).