[SOLVED] Chevrolet P1235 Code: Repair Injector 5 Output Circuit Fast

The OBD code P1235 for Chevrolet indicates an issue with Fuel Injector 5 circuit.

Symptoms include Engine Light ON, engine misfire, and rough running.

Causes may include a faulty Fuel Injector 5, open/shorted harness, poor electrical connection, or faulty FICM/ECM.

This is a moderate issue.

To fix, inspect wiring harness, connectors, and components for damage or corrosion.

Repair Importance Level	10.0 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	6.67 (Out of 10)

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Symptoms of the Chevrolet p1235 OBD Code

The vehicle may experience issues related to the fuel pump control circuit malfunction (code P1235).

With Chevrolet OBD code P1235, the Service Engine Soon Warning Light may illuminate.
Engine misfire can occur.
Rough running may be experienced while driving.

Causes of the Chevrolet p1235 OBD Code

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P1235 in a Chevrolet typically indicates an issue with the fuel pump control circuit.

P1235 can be caused by a Faulty Fuel Injector 5.
A Fuel Injector 5 harness that is open or shorted.
A Fuel Injector 5 circuit with a poor electrical connection.
A Faulty Fuel Injection Control Module (FICM).
A Faulty Engine Control Module (ECM).

Fixing Chevrolet Error Code p1235 Step By Step

Address the issue by inspecting the fuel pump control circuit for Chevrolet fault code P1235.

To fix Chevrolet OBDII code P1235, start by reviewing the possible causes mentioned above.
Visually examine the corresponding wiring harness and connectors for any damage.
Check the connector pins for signs of being broken, bent, pushed out, or corroded.
Test the fuel pump control module for proper operation.
Replace the fuel pump control module if necessary.
Clear the fault codes and perform a test drive to verify the repair.

Cost Of Fixing Chevrolet p1235 Fault Code

Diagnosing and repairing fault code P1235 on a Chevrolet may involve testing and replacing components.

The cost to diagnose and fix a Chevrolet OBD code P1235 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.

The final cost depends on labor rates, shop fees, and the complexity of the repair needed.

Details of the Chevrolet p1235 OBD Code

Chevrolet code P1235 relates to the fuel pump control circuit malfunction.

Chevrolet OBD code P1235 means the Fuel Pump Control Out of Range.

This code is triggered by the Engine Control Module (ECM) when it detects that the fuel pump control circuit is operating outside of the expected range.

This can be caused by issues with the fuel pump relay, wiring, or the fuel pump itself.

The signal or system involved is the fuel pump control circuit, which is crucial for delivering the correct amount of fuel to the engine for proper operation.

Mechanic’s Tech Notes

P1235 in a Chevrolet indicates a malfunction in the fuel pump control circuit.

To diagnose and fix OBDII code P1235 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.

Additionally, visually inspect the wiring harness and connectors for any damage, and ensure connector pins are not broken, bent, pushed out, or corroded.

This thorough inspection can help identify and resolve the issue causing the P1235 fault code.

FAQ

1. What does OBD code P1235 mean in a Chevrolet vehicle?

OBD code P1235 in a Chevrolet indicates an issue with Fuel Injector 5. Symptoms include Engine Light ON, misfire, and rough running. Check wiring and connectors for faults.

2. What are the common symptoms associated with OBD code P1235 in a Chevrolet?

Common symptoms of OBD code P1235 in a Chevrolet include Engine Light ON, engine misfire, rough running. Causes may include faulty Fuel Injector 5 or related wiring issues.

3. How can I diagnose and fix OBD code P1235 in my Chevrolet vehicle?

Diagnose and fix OBD code P1235 in a Chevrolet: Symptoms include Engine Light ON, misfire, rough running. Check Fuel Injector 5, harness, connectors for faults.

Chevrolet p1235 error fault code explained

Wrap Up

If your Chevrolet is displaying OBD code P1235 along with stalling or rough idling, it may be caused by a faulty fuel pump control module.

This module controls the fuel pump’s operation and can lead to engine performance issues if malfunctioning.

To address Chevrolet OBD code P1235, check the fuel pump control module for any signs of damage or corrosion.

Test the module’s connections and wiring harness for proper voltage and continuity.

If necessary, replace the fuel pump control module to restore proper fuel pump function and resolve the code.