P1236 FORD Possible Causes

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

How to Fix P1236 FORD 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.

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 via the communication link.

Possible Symptoms

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

P1236 FORD Meaning

The P1236 code indicates that the Fuel Pump Driver Module (FPDM) has detected an invalid or missing fuel pump (FP) circuit signal from the Powertrain Control Module (PCM). The FPDM sends a message to the PCM via the FPM circuit, indicating that this fault has been detected. The PCM sets the DTC when the message is received.

P1236 GMC Possible Causes

• Faulty fuel injector 5
• Fuel injector 5 harness is open or shorted
• Poor electrical connection in fuel injector 5 circuit
• Faulty Engine Control Module (ECM)

How to Fix GMC Code P1236?

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 service warning light soon)

P1236 GMC Meaning

The Engine Control Module (ECM) provides voltage to each fuel injector on the positive voltage injector control circuits. The ECM powers each fuel injector by grounding that fuel injector’s control circuit. The ECM monitors the status of the positive voltage injector control circuits and the fuel injector control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injectors will be disabled and may disable the related fuel injector group. The Diagnostic Trouble Code (DTC) will be set when the ECM injector output driver detects incorrect current on a fuel injector circuit.

P1236 INFINITI Possible Causes

• Faulty Electronic Throttle Control (ETC) actuator (throttle control motor)
• Electronic Throttle Control (ETC) actuator harness is open or shorted
• Poor electrical connection in the Electronic Throttle Control (ETC) actuator circuit

How to Fix Code P1236 INFINITI?

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

When is the Code Detected?

The Engine Control Module (ECM) detects short circuits in both circuits between the ECM and the throttle control motor.

Possible Symptoms

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

P1236 INFINITI Meaning

The throttle control motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. The current throttle valve opening angle is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle correctly in response to the driving condition.

P1236 LEXUS Possible Causes

• Faulty high-pressure fuel pump
• High-pressure fuel pump harness is open or shorted
• Poor electrical connection in high-pressure fuel pump circuit

How to Fix Code P1236 LEXUS?

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.

Possible Symptoms

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

P1236 LEXUS Meaning

High-pressure fuel pump circuit number 2 is the generic description for Lexus code P1236, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the Lexus P1236 OBDII code.

P1236 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 P1236 MAZDA?

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.

Technical Notes

Fuel Pump Driver Module (FPDM) disabled or offline

Possible Symptoms

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

P1236 MAZDA Meaning

Fuel Pump Driver Module disabled or offline is the generic description for the Mazda P1236 code, but the manufacturer may have a different description for your specific model and vehicle year. Currently, we do not have more information about the Mazda P1236 OBDII code.

P1236 MINI Possible Causes

• Faulty fuel pump relay
• Fuel pump relay circuit open or shorted
• Poor electrical connection in fuel pump relay circuit

How to Fix P1236 MINI 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.

Technical Notes

Fuel pump relay primary circuit high

Possible Symptoms

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

P1236 MINI Meaning

Fuel pump relay activation is the generic description for P1236 Mini code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the P1236 Mini OBDII code.

P1236 NISSAN Possible Causes

• Faulty Electronic Throttle Control Actuator (ETC) (throttle control motor)
• Electronic Throttle Control Actuator (ETC) harness is open or shorted
• Poor electrical connection in the Electronic Throttle Control Actuator (ETC) circuit

How to Fix P1236 NISSAN Code?

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

When is the Code Detected?

The Engine Control Module (ECM) detects short circuits in both circuits between the ECM and the throttle control motor.

Possible Symptoms

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

P1236 NISSAN Meaning

The throttle control motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. The current throttle valve opening angle is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle correctly in response to the driving condition.

P1236 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 intake manifold air control solenoid outer flap circuit

How to Fix P1236 SAAB Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding cable 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)

P1236 SAAB Meaning

Open/ground short circuit in intake manifold air control solenoid is the generic description for P1236 Saab code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the OBDII P1236 Saab code.

P1236 TOYOTA Possible Causes

• Faulty high-pressure fuel pump
• High-pressure fuel pump harness is open or shorted
• Poor electrical connection in the high-pressure fuel pump circuit

How to Fix Code P1236 TOYOTA?

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)

P1236 TOYOTA Meaning

High-pressure fuel pump circuit number 2 is the generic description for Toyota code P1236, but the manufacturer may have a different description for your vehicle’s model and year. Currently, we do not have more information about the Toyota P1236 OBDII code.

P1237 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?

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 service warning light soon)

P1237 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 problem in the fuel pump secondary circuit. 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.