P1260 GMC – Fuel Pump Speed Relay Control Circuit Conditions

P1260 GMC Possible Causes

  • Faulty fuel pump speed relay
  • Fuel pump speed relay harness is open or shorted
  • Poor electrical connection in the fuel pump speed relay circuit

How is GMC Code P1260 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 service engine soon warning light)

P1260 GMC Meaning

With the key on or the engine running, the Powertrain Control Module (PCM) detects an incorrect voltage level on the fuel pump speed control PWM circuit, condition met for at least 30 seconds.

P1260 JEEP – Glow Plug Circuit #1

P1260 JEEP Possible Causes

  • Faulty glow plug #1
  • Glow plug #1 harness is open or shorted
  • Poor electrical connection in glow plug #1 circuit
  • Faulty glow plug controller

How is the P1260 JEEP code repaired?

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

Possible Symptoms

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

P1260 JEEP Meaning

Glow plugs are used to preheat the combustion chambers to reach the required ignition temperature for the air-fuel mixture.
The glow plug consists of a housing with a female thread and a tightly fitted rod. The heating element is integrated into the glow plug rod. It consists of a heating coil and a control coil connected in series.
When the glow plug system is activated, a current of approximately 30 amps flows to each glow plug. The heating coil heats the glow plug. The control coil increases its resistance as the temperature rises and limits the current to about 15-25 amps. This protects the glow plug from overloads.

P1260 LINCOLN – Theft detected – Vehicle immobilized

P1260 LINCOLN Possible Causes

  • Powertrain Control Module (PCM) improperly programmed
  • Instrument Cluster (IC) or Instrument Panel Cluster (IPC) improperly programmed
  • Previous theft condition
  • Anti-theft system issue

How is the P1260 LINCOLN 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.

When is the code detected?

The Engine Control Module (ECM) received a signal from the anti-theft system indicating that a violation has occurred

Possible Symptoms

  • Check Engine Light on (or Service Engine Soon warning light)
  • Starting/Stalling or Cranking/No Start

P1260 LINCOLN Meaning

The P1260 code may be set if the Passive Anti-Theft System (PATS) determined that a theft condition existed and the engine is disabled or an engine start was attempted using a non-PATS key. This Diagnostic Trouble Code (DTC) is a good indicator to check PATS for DTCs. This DTC may also be set when a new Instrument Cluster (IC), Instrument Panel Cluster (IPC), or Powertrain Control Module (PCM) is installed without properly programming either module, even if the vehicle is not equipped with PATS.

P1260 MERCURY – Flight detected – Vehicle immobilized

P1260 MERCURY Possible Causes

  • Powertrain Control Module (PCM) improperly programmed
  • Instrument Cluster (IC) or Instrument Panel Cluster (IPC) improperly programmed
  • Previous theft condition
  • Anti-theft system issue

How is the P1260 MERCURY 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.

When is the code detected?

The Engine Control Module (ECM) received a signal from the anti-theft system indicating that a violation has occurred

Possible Symptoms

  • Engine light on (or service engine soon warning light)
  • Starting/Stalling or Cranking/No start

P1260 MERCURY Meaning

The P1260 code may be set if the Passive Anti-Theft System (PATS) has determined that a theft condition existed and the engine is disabled or an engine start was attempted using a non-PATS key. This Diagnostic Trouble Code (DTC) is a good indicator to check the PATS for DTCs. This DTC may also be set when a new Instrument Cluster (IC), Instrument Panel Cluster (IPC), or Powertrain Control Module (PCM) is installed without properly programming either module, even if the vehicle is not equipped with PATS.

P1260 SAAB – Throttle Return Spring Weak Spring Force

P1260 SAAB Possible Causes

  • Faulty throttle body
  • Dirty throttle body
  • Throttle body harness is open or shorted
  • Poor electrical connection in the throttle body circuit
 

How is the P1260 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 service engine soon warning light)
 

P1260 SAAB Meaning

Weak throttle return spring spring force is the generic description for the Saab P1260 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about the Saab P1260 OBDII code.

P1261 – Cylinder #1 High to Low Side Short

Meaning of Code P1261

  • Fuel injectors are essential for delivering the correct amount of fuel into the combustion chamber.
  • They operate with a piezoelectric actuator controlled by the Powertrain Control Module (PCM).
  • Code P1261 indicates a problem detected by the fuel injector interface module in the secondary (rear) fuel injector circuit.

Possible Symptoms

  • Check engine light illuminated.

Possible Causes

  • Faulty fuel injector 1.
  • Fuel injector 1 wiring harness open or short circuit.
  • Poor electrical connection in fuel injector 1 circuit.
  • Faulty fuel injector interface module.

Repair Procedure

  1. Visual Inspection:
    • Check cables and connectors associated with injector 1.
    • Look for signs of damage: frayed wires, corroded connectors, bent or broken pins.
    • Check wiring harness connections at the valve cover, including under the valve cover.
  2. Component Testing:
    • If visual inspection reveals no issues, test fuel injector 1.
    • Check the fuel injector interface module.
    • If possible, test wire continuity.

P1261 AUDI – Injector 1 Control Limit Exceeded

P1261 AUDI Possible Causes

  • Control period too long
  • Faulty fuel injector
  • Fuel injector harness is open or shorted
  • Poor electrical connection in the fuel injector circuit
 

How is the P1261 AUDI code repaired?

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

 
 

Possible Symptoms

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

P1261 AUDI Meaning

Injector 1 Control Limit Exceeded is the generic description for Audi P1261 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about the Audi P1261 OBDII code.

P1261 FORD – Cylinder #1 High to Low Side Short

P1261 FORD Possible Causes

  • Faulty fuel injector 1
  • Fuel injector 1 harness is open or shorted
  • Poor electrical connection in fuel injector 1 circuit
  • Faulty fuel injector interface module

How is the P1261 FORD code repaired?

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

First check the valve cover wiring harness connections, including under the valve cover.

Possible Symptoms

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

P1261 FORD Meaning

Fuel injectors are connected to the high-pressure injection rail and deliver a calibrated amount of fuel directly into the combustion chamber. The piezo actuator is controlled by the PCM during the main injection stage for approximately 0 to 400 microseconds. The activation and deactivation times of the fuel injectors are controlled by the piezo actuator device which allows for extreme precision during the injection cycle. The diagnostic trouble code (DTC) is detected by the fuel injector interface module in the secondary (rear) fuel injector circuit.

P1261 JEEP – Glow plug control circuit #1 low

P1261 JEEP Possible Causes

  • Faulty glow plug #1
  • Glow plug #1 harness is open or shorted
  • Poor electrical connection in glow plug #1 circuit
  • Faulty glow plug controller

How is P1261 JEEP Code Repaired?

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

Possible Symptoms

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

P1261 JEEP Meaning

Glow plugs are used to preheat the combustion chambers to reach the required ignition temperature for the air-fuel mixture.
The glow plug consists of a housing with a female thread and a tightly fitted rod. The heating element is integrated into the glow plug rod. It consists of a heating coil and a control coil connected in series.
When the glow plug system is activated, a current of approximately 30 amps flows to each glow plug. The heating coil heats the glow plug. The control coil increases its resistance as the temperature rises and limits the current to about 15-25 amps. This protects the glow plug from overloads.

P1261 MAZDA – Cylinder #1 High to Low Side Short

P1261 MAZDA Possible Causes

  • Faulty fuel injector 1
  • Fuel injector 1 harness is open or shorted
  • Poor electrical connection in fuel injector 1 circuit
  • Faulty fuel injector interface module

How is MAZDA Code P1261 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 service engine soon warning light)

P1261 MAZDA Meaning

Fuel injectors are connected to the high-pressure injection rail and deliver a calibrated amount of fuel directly into the combustion chamber. The piezo actuator is controlled by the PCM during the main injection step for about 0 to 400 microseconds. The activation and deactivation times of the fuel injectors are controlled by the piezo actuator device, which allows for extreme precision during the injection cycle. The diagnostic trouble code (DTC) is detected by the fuel injector interface module in the secondary (rear) fuel injector circuit.