[SOLVED] Chevrolet P26C9 Code: Resolve Auxiliary Chassis Control Module Issue

The OBD code P26C9 for Chevrolet indicates an issue with the Auxiliary Chassis Control Module.

Symptoms include the Engine Light being ON.

The fault may lie in a faulty module or wiring harness/connectors.

It’s crucial to inspect these components for damage or corrosion.

While not a severe issue, it should be addressed promptly to prevent further complications.

Repair Importance Level	10.0 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	10.0 (Out of 10)

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Symptoms of the Chevrolet p26c9 OBD Code

The vehicle may experience rough idling, poor acceleration, and decreased fuel efficiency with code P26C9.

Symptoms: Engine Light ON.
Reduced engine performance.
Rough idle.
Engine stalling.
Difficulty starting the vehicle.

Causes of the Chevrolet p26c9 OBD Code

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P26C9 in a Chevrolet typically indicates an issue with the fuel pump control module.

P26C9 can be caused by a faulty Auxiliary Chassis Control Module.
Check Auxiliary Chassis Control Module for codes.
Faulty sensors.
Broken connectors.
Low voltage.
Corroded grounds.
Signal loss.

Fixing Chevrolet Error Code p26c9 Step By Step

To address Chevrolet fault code P26C9, inspect and potentially replace the transmission fluid pressure control solenoid.

To fix the Chevrolet OBDII code p26c9, start by reviewing the possible causes mentioned above.
Visually examine the wiring harness and connectors related to the fuel pump module.
Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
If no issues are found with the wiring and connectors, proceed to test the fuel pump module for proper operation.
Replace the fuel pump module if necessary.
Clear the fault code from the vehicle’s computer using a scan tool.

Cost Of Fixing Chevrolet p26c9 Fault Code

The repair for Chevrolet fault code P26C9 involves replacing the transmission fluid pressure control solenoid.

The cost to diagnose and fix the Chevrolet OBD code P26C9 depends on the estimated 1. 0hour repair time.

Labor rates usually range from $75 to $150 per hour, so the total cost could be between $75 and $150. Costs may vary based on shop rates and the complexity of the repair needed.

Details of the Chevrolet p26c9 OBD Code

P26C9 code indicates a problem with the fuel pump A control circuit low.

Chevrolet OBD code P26C9 means that the fuel pump A control circuit is low.

This code is triggered by the Engine Control Module (ECM) when it detects a low voltage condition in the fuel pump A control circuit.

The fuel pump control module (FPCM) is the component that triggers this fault code.

The fuel pump control module is responsible for controlling the operation of the fuel pump based on various inputs from the ECM and other sensors.

When the ECM detects a low voltage condition in the fuel pump A control circuit, it sets code P26C9 to indicate a potential issue with the fuel pump control module or its circuitry.

Mechanic’s Tech Notes

Detailed information on Chevrolet fault code P26C9 and possible causes and solutions.

To diagnose and fix OBDII code P26C9 on a Chevrolet, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.

Verify TCM communication over the Controller Area Network (CAN) using a scan tool.

If the TCM does not respond, reprogramming or reflashing may be necessary.

Visually inspect the wiring harness and connectors for any damage, focusing on broken, bent, or corroded pins.

Ensure all connections are secure.

If the issue persists, consider consulting a professional for further diagnosis and repair.

FAQ

1. What does OBD code P26C9 indicate in a Chevrolet vehicle?

OBD code P26C9 in a Chevrolet indicates a fault with the Auxiliary Chassis Control Module. Check for codes, inspect module, wiring, and connectors for damage.

2. What are the common symptoms associated with code P26C9 in a Chevrolet?

Common symptoms for code P26C9 in a Chevrolet include the Engine Light ON. Check the Auxiliary Chassis Control Module for codes and inspect wiring harness/connectors for damage.

3. How can I diagnose and repair OBD code P26C9 in my Chevrolet vehicle?

Diagnose P26C9 by checking the Auxiliary Chassis Control Module for codes. Repair by inspecting wiring harness, connectors, and module for damage or corrosion.

Chevrolet p26c9 error fault code explained

Wrap Up

If your Chevrolet is displaying OBD code p26c9, you may experience rough shifting, transmission slipping, or decreased fuel efficiency.

This code typically indicates an issue with the transmission fluid pressure sensor E circuit, possibly caused by a faulty sensor, damaged wiring, or poor electrical connection.

To address Chevrolet OBD code p26c9, start by inspecting the transmission fluid pressure sensor E and its wiring harness for any signs of damage or corrosion.

Test the sensor’s resistance and ensure proper electrical connections.

If necessary, replace the sensor and repair any wiring issues to restore proper transmission operation.