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P1238 - Fuel Pump Secondary Circuit Fault

Possible causes
- Faulty Fuel Pump Driver Module (FPDM)
- Fuel Pump Driver Module (FPDM) harness is open or shorted
- Fuel Pump Driver Module (FPDM) circuit poor electrical connection
- Faulty fuel pump
What does this mean? What does this mean?
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1238 Description

This DTC indicates the Fuel Pump Driver Module (FPDM2) detected a fuel pump secondary circuit concern. The FPDM2 sends a message to the powertrain control module (PCM) through the fuel pump monitor (FPM2) circuit, indicating this concern was detected. The PCM sets the DTC when the message is received.

P1238 Information for specific makes
P1238 AUDI Injector Circuit Open Cylinder 2
P1238 CHEVROLET Injector 6 Output Circuit
P1238 FORD Fuel Pump Secondary Circuit Fault
P1238 GMC Injector 6 Output Circuit
P1238 INFINITI Electric Throttle Control Actuator
P1238 ISUZU High Fuel Pressure Regulator Circuit Shorted To Battery
P1238 MAZDA Fuel Pump Driver Module Disabled or Off Line
P1238 MITSUBISHI MASS Airflow Sensor Plausibility
P1238 NISSAN Electric Throttle Control Actuator
P1238 VOLKSWAGEN Injector Circuit Open Cylinder 2
P1238 VOLVO Turbocharger Control valve
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