P1131 CHRYSLER Glow Plug Control Module Internal Fault-Voltage Supply Concern

Possible causes
– Faulty Glow Plug Control Module
– Glow Plug Control Module harness is open or shorted
– Glow Plug Control Module circuit poor electrical connection
When is the code detected?
The Engine Control Module (ECM) has detected a concern in the Glow Plug Control Module
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1131 CHRYSLER Description
Glow Plug Control Module (GPCM)