P1229 JAGUAR Possible Causes

• Faulty throttle actuator
• Faulty throttle actuator relay
• Throttle actuator harness is open or shorted
• Poor electrical connection in the throttle actuator circuit

How to Fix Code P1229 JAGUAR?

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)

P1229 JAGUAR Meaning

The Engine Control Module (ECM) monitors the throttle actuator control circuit. The ECM sets the OBDII code when the throttle actuator does not meet factory specifications.

P1229 LINCOLN Possible Causes

• ICP engine harness is open or shorted
• Poor electrical connection in the ICP circuit
• ICP poor power or ground supply
• Faulty intercooler pump (ICP) motor
• Damaged Powertrain Control Module (PCM)

How to Fix Code P1229 LINCOLN?

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

The Intercooler Pump (ICP) DTC will set when the Powertrain Control Module (PCM) commands the pump to run but no current is detected.

When is the Code Detected?

The Powertrain Control Module (PCM) has activated the ICP but no current is detected

Possible Symptoms

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

P1229 LINCOLN Meaning

The supercharger intercooler pump inoperative condition is the generic description for Lincoln code P1229, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the Lincoln P1229 OBDII code.

P1229 MERCURY Possible Causes

• ICP motor harness is open or shorted
• Poor electrical connection in the ICP circuit
• ICP poor power or ground supply
• Faulty intercooler pump (ICP) motor
• Damaged powertrain control module (PCM)

How to Fix Code P1229 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.

Technical Notes

The intercooler pump (ICP) DTC will be set when the powertrain control module (PCM) commands the pump to run but no current is detected.

When is the Code Detected?

The powertrain control module (PCM) has activated the ICP but no current is detected

Possible Symptoms

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

P1229 MERCURY Meaning

Compressor intercooler pump malfunction condition is the generic description for code P1229 Mercury, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about the Mercury P1229 OBDII code.

P1229 NISSAN Possible Causes

• Check the ground of the body harness
• Faulty accelerator pedal position (APP) sensor
• Faulty power steering pressure (PSP) sensor
• Faulty refrigerant pressure sensor
• Faulty EVAP control system pressure sensor

How to fix code P1229 NISSAN?

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

Begin by inspecting the harness connections to the body grounds.

When is the code detected?

The Engine Control Module (ECM) detects that the voltage from the power supply for the sensor is excessively low or high.

Possible Symptoms

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

P1229 NISSAN Meaning

The Engine Control Module (ECM) detects that the voltage from the power supply for the sensor is excessively low or high. The ECM stops controlling the electronic throttle control actuator, and the throttle valve is held at a fixed opening (approximately 5 degrees) by the return spring.

P1229 TOYOTA Possible Causes

• Faulty fuel pressure regulator
• Fuel pressure regulator stuck open
• Defective wiring / fuel pump wiring
• Faulty engine control module (ECM)

How to Fix Code P1229 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 engine warning light soon to come on)

P1229 TOYOTA Meaning

Fuel must flow through the lines at an ideal pressure for your engine to function properly. A system failure can lead to system overload and an increase in pressure beyond the ideal range. Your Toyota’s fuel system is controlled by the fuel pressure regulator, and most overpressure issues will come from this part or its wiring. When there is a pressure problem in the system, a vehicle engine control module (ECM) fault code is stored; when the issue is excessive pressure, the dashboard will illuminate the SES or check engine light to indicate that code P1229 has been stored in your vehicle’s ECM.

P1229 VOLKSWAGEN Possible Causes

• Faulty fuel injector 5
• Fuel injector 5 harness is open or shorted
• Poor electrical connection in fuel injector 5 circuit

How to Fix Code P1229 VOLKSWAGEN?

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

If the code is combined with other fuel injector codes (P1225, P1226, P1227, P1228, P1230), the issue might be the fuel pump relay.

Possible Symptoms

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

P1229 VOLKSWAGEN Meaning

Cylinder 5 injector circuit shorted to ground is the generic description for Volkswagen code P1229, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have additional information about Volkswagen OBDII code P1229.

P122A Possible Causes

• Faulty fuel injector 3
• Fuel injector 3 harness is open or shorted
• Poor electrical connection in fuel injector 3 circuit
• Faulty Engine Control Module (ECM)

How is code P122A 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 engine service warning light soon)

P122A Meaning

The Engine Control Module (ECM) provides voltage to each fuel injector on the positive voltage control circuits of the injector. The ECM powers each fuel injector by grounding the control circuit of that fuel injector. The ECM monitors the status of the injector positive voltage 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.

P122A BUICK Possible Causes

• Faulty fuel injector 3
• Fuel injector 3 harness is open or shorted
• Poor electrical connection in fuel injector 3 circuit
• Faulty Engine Control Module (ECM)

How to Fix P122A BUICK Code?

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 engine service warning light soon)

P122A BUICK 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.

P122A CHEVROLET Possible Causes

• Faulty fuel injector 3
• Fuel injector 3 harness is open or shorted
• Poor electrical connection in fuel injector 3 circuit
• Faulty Engine Control Module (ECM)

How to Fix P122A CHEVROLET 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 service engine soon warning light)

P122A CHEVROLET Meaning

The Engine Control Module (ECM) provides voltage to each fuel injector on the injector positive voltage control circuits. The ECM powers each fuel injector by grounding that fuel injector’s control circuit. The ECM monitors the status of the injector positive voltage control circuits and 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.

P122C Possible Causes

• Faulty nitrogen oxide sensor
• Nitrogen oxide sensor harness is open or shorted
• Poor electrical connection in the nitrogen oxide sensor circuit

How is Code P122C 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

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

P122C Meaning

The Engine Control Module (ECM) monitors the nitrogen oxide sensor. The ECM sets the OBDII code when the nitrogen oxide sensor does not meet factory specifications.