P1235 Chevrolet Code - Injector 5 Output Circuit
Quick Answer
The P1235 Chevrolet code indicates a problem with the injector 5 output circuit in the vehicle's engine control module (ECM). Common causes include Faulty injector 5, Wiring harness issues, Poor electrical connection to injector 5. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1235 Chevrolet indicates Injector 5 Output Circuit.
- Common causes
- Common causes include Faulty injector 5, Wiring harness issues, Poor electrical connection to injector 5.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1235 Chevrolet Description
The P1235 Chevrolet code indicates a problem with the injector 5 output circuit in the vehicle's engine control module (ECM). Injectors are responsible for delivering fuel into the combustion chamber of the engine at the precise moment to ensure optimal performance. When there is an issue with the injector 5 output circuit, it can lead to misfires, poor fuel efficiency, and potentially even engine damage if left unresolved.
Common Causes of P1235 Chevrolet
- Faulty injector 5
- Wiring harness issues
- Poor electrical connection to injector 5
- ECM malfunction
- Corrosion or damage to injector circuit components
Symptoms of P1235 Chevrolet
- Check Engine Light is illuminated
- Engine misfires or runs rough
- Decreased fuel efficiency
- Loss of power or hesitation during acceleration
- Engine stalling or difficulty starting
How to Fix P1235 Chevrolet
- Perform a thorough inspection of the injector 5 and its wiring harness to check for any visible damage or corrosion.
- Test the electrical connection to injector 5 to ensure it is secure and functioning properly.
- Use a multimeter to test the resistance of the injector 5 circuit to detect any abnormalities.
- If necessary, replace the faulty injector 5 or repair any damaged wiring or connections.
- Clear the trouble codes from the ECM and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1235 Chevrolet
The cost of repairing the injector 5 output circuit can vary depending on the severity of the issue and the specific components that need to be replaced. On average, the parts for this repair can range from $100 to $300, while labor costs can be anywhere from $150 to $400. Overall, the total cost of addressing this code typically falls between $250 and $700. It is important to note that diagnostic time and labor rates at auto repair shops can differ, so it's recommended to get a personalized estimate from a trusted mechanic.
Tech Notes for P1235 Chevrolet
There is a factory service bulletin for the following Chevrolet models:
2004 Chevrolet Kodiak
2005 Chevrolet Kodiak
2004 Chevrolet Silverado
2005 Chevrolet Silverado
2004-2005 Chevrolet Kodiak, Silverado Factory Service Bulletin OBDII Code P1235
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