DTC P0108 Without RPO CTF
Circuit Description
The barometric pressure (BARO) sensor is part of the engine control module (ECM).
If the ECM detects a signal voltage that is excessively low voltage DTC P0107 will set. If the ECM detects a signal voltage that is excessively high DTC P0108 will set.
Conditions for Setting the DTC
| • | The BARO sensor voltage is more than 4.7 volts. |
| • | The above conditions is met for more than 1 second. |
Action Taken When the DTC Sets
The ECM will operate the vehicle based on a BARO pressure of 100 kPa (14.5 psi).
Conditions for Clearing the DTC
| • | A current DTC Last Test Failed clears when the diagnostic runs and passes. |
| • | Clear the DTC with a scan tool. |
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Engine Controls Schematics | |||
1 | Does the DTC set while the ignition is ON and the engine is running? | Go to Step 2 | Go to Intermittent Conditions |
2 | Clear the DTCs. Does The DTC reset? | Go to Step 3 | Go to Step 5 |
3 | Replace the ECM. Did you complete the replacement? | Go to Step 4 | -- |
4 | Clear the DTCs. Does the DTC reset? | Go to Step 2 | Go to Step 5 |
5 | Operate the vehicle. Do any other DTCs set? | System OK | |
