P1237 CADILLAC Possible Causes

• Faulty fuel injector 6
• Fuel injector 6 harness is open or shorted
• Poor electrical connection in fuel injector 6 circuit

How to Fix Code P1237 CADILLAC?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine light on (or service engine soon warning light)

P1237 CADILLAC Meaning

Cylinder 6 Injector Circuit Intermittent is the generic description for code P1237 Cadillac, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have further information about Cadillac OBDII code P1237.

P1237 CHEVROLET Possible Causes

• Faulty fuel injector 6
• Fuel injector 6 harness is open or shorted
• Poor electrical connection in fuel injector 6 circuit

How to Fix Code P1237 CHEVROLET?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine light on (or service engine soon warning light)

P1237 CHEVROLET Meaning

Cylinder 6 injector circuit intermittent is the generic description for Chevrolet code P1237, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have additional information about the Chevrolet P1237 OBDII code.

P1237 FORD Possible Causes

• Faulty Fuel Pump Driver Module (FPDM)
• Fuel Pump Driver Module (FPDM) harness is open or shorted
• Poor electrical connection in the Fuel Pump Driver Module (FPDM) circuit
• Faulty fuel pump

How to Fix Code P1237 FORD?

Start by checking the “Possible Causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

Note: For LS6/LS8 and Thunderbird, FPDM functions are integrated into the Rear Electronic Module (REM). Additionally, the REM does not use an FPM circuit. Diagnostic information is sent over the communication link.

When is the Code Detected?

The Fuel Pump Driver Module detected a fault in the fuel pump secondary circuit

Possible Symptoms

• Engine Light On (or Service Engine Soon Warning Light)
• Engine does not start

P1237 FORD Meaning

Fuel Pump Driver Modules (FPDM) control the fuel pump voltage to maintain proper fuel pressure throughout the engine’s operating range. Code P1237 indicates that the FPDM has detected a fuel pump secondary circuit issue. The FPDM sends a message to the Powertrain Control Module (PCM) via the Fuel Pump Monitor (FPM) circuit indicating that this problem has been detected. The PCM sets the DTC when the message is received.

P1237 GMC Possible Causes

• Faulty fuel injector 6
• Fuel injector 6 harness is open or shorted
• Poor electrical connection in fuel injector 6 circuit

How is GMC P1237 Code Repaired?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine Light On (or Service Engine Soon Warning Light)

P1237 GMC Meaning

Cylinder 6 Injector Circuit Intermittent is the generic description for GMC P1237 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about GMC OBDII P1237 code.

P1237 ISUZU Possible Causes

• Faulty high-pressure fuel regulator
• High-pressure fuel regulator wiring harness is open or short-circuited
• Poor electrical connection in the high-pressure fuel regulator circuit

How to Fix P1237 ISUZU Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine light on (or engine warning light soon to be active)

P1237 ISUZU Meaning

The high-pressure fuel regulator circuit shorted to ground is the generic description for the P1237 Isuzu code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have additional information about the Isuzu P1237 OBDII code.

P1237 LINCOLN Possible Causes

• Faulty Fuel Pump Driver Module (FPDM)
• Fuel Pump Driver Module (FPDM) harness is open or shorted
• Poor electrical connection in the Fuel Pump Driver Module (FPDM) circuit
• Faulty fuel pump

How to Fix Code P1237 LINCOLN?

Start by checking the “Possible Causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

Note: For LS6/LS8 and Thunderbird, the FPDM functions are integrated into the Rear Electronic Module (REM). Additionally, the REM does not use an FPM circuit. Diagnostic information is sent over the communication link.

When is the Code Detected?

The Fuel Pump Driver Module detected a fault in the fuel pump secondary circuit

Possible Symptoms

• Engine Light On (or Service Engine Soon Warning Light)
• Engine does not start

P1237 LINCOLN Meaning

Fuel Pump Driver Modules (FPDM) control the fuel pump voltage to maintain proper fuel pressure throughout the engine’s operating range. Code P1237 indicates that the FPDM has detected a fuel pump secondary circuit issue. The FPDM sends a message to the Powertrain Control Module (PCM) via the Fuel Pump Monitor (FPM) circuit indicating that this issue has been detected. The PCM sets the DTC when the message is received.

P1237 MAZDA Possible Causes

• Faulty Fuel Pump Driver Module (FPDM)
• Fuel Pump Driver Module (FPDM) harness is open or shorted
• Poor electrical connection in the Fuel Pump Driver Module (FPDM) circuit

How to Fix Code P1237 MAZDA?

Start by checking the “Possible Causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Technical Notes

Fuel Pump Driver Module (FPDM) disabled or offline

Possible Symptoms

• Engine Light On (or Service Engine Soon Warning Light)

P1237 MAZDA Meaning

Fuel Pump Driver Module disabled or offline is the generic description for code P1237 Mazda, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the Mazda P1237 OBDII code.

P1237 MERCURY Possible Causes

• Faulty Fuel Pump Driver Module (FPDM)
• Fuel Pump Driver Module (FPDM) harness is open or shorted
• Poor electrical connection in the Fuel Pump Driver Module (FPDM) circuit
• Faulty fuel pump

How to Fix Code P1237 MERCURY?

Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

The Fuel Pump Driver Module detected a fault in the fuel pump secondary circuit

Possible Symptoms

• Engine Light On (or Service Engine Soon Warning Light)
• Engine does not start

P1237 MERCURY Meaning

Fuel Pump Driver Modules (FPDM) control the fuel pump voltage to maintain proper fuel pressure throughout the engine’s operating range. Code P1237 indicates that the FPDM has detected a fuel pump secondary circuit issue. The FPDM sends a message to the Powertrain Control Module (PCM) via the Fuel Pump Monitor (FPM) circuit indicating that this problem has been detected. The PCM sets the DTC when the message is received.

P1237 MITSUBISHI Possible Causes

• Faulty accelerator pedal position (APP) sensor
• Accelerator pedal position sensor harness is open or shorted
• Poor electrical connection in accelerator pedal position sensor circuit

How is code P1237 MITSUBISHI repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Technical Notes

Accelerator Pedal Position (APP) Sensor Plausibility

Possible Symptoms

• Engine light on (or service engine soon warning light)

P1237 MITSUBISHI Meaning

Accelerator Pedal Position Sensor Plausibility is the generic description for Mitsubishi code P1237, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have further information about the Mitsubishi P1237 OBDII code.

P1237 SAAB Possible Causes

• Faulty intake manifold air control solenoid outer flap
• Intake manifold air control solenoid outer flap harness is open or shorted
• Poor electrical connection in the intake manifold air control solenoid outer flap circuit

How is the P1237 SAAB code repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine light on (or engine service soon warning light)

P1237 SAAB Meaning

Intake manifold air control solenoid outer flap circuit open / Short to positive is the generic description for Saab P1237 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information on the Saab P1237 OBDII code.