DTC C148D Jeep
No Change In MAP Signal From Start To Run Transition
No Change In MAP Signal From Start To Run Transition
Description
Engine started, engine speed between 400 and 1200 rpm, and the PCM detected too small a difference between the BARO signal at key on and the engine running MAP Sensor input for 1.76 seconds.
Cause and Solution
Engine vacuum port to MAP Sensor clogged, dirty or restrictedMAP Sensor signal is skewed or the Sensor is out-of-calibrationMAP Sensor VREF circuit open or grounded (intermittent fault)PCM has failed
Video Guide
Diagnostic Info
- DTC Code: C148D
- Brand: Jeep