Infiniti DTC P1635 – 5 Volt Reference Voltage Circuit Malfunction
DTC P1635 meaning on Infiniti
DTC P1635 on an Infiniti indicates a malfunction in the 5-volt reference voltage circuit. This circuit is responsible for providing a stable 5-volt reference signal to various engine sensors and components.
Infiniti DTC P1635 symptoms
Symptoms of DTC P1635 on an Infiniti may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Engine running rough or misfiring
- Loss of power or acceleration
- Difficulty starting the engine
Infiniti DTC P1635 causes
Common causes of DTC P1635 on an Infiniti include:
- Short circuit or open circuit in the 5-volt reference voltage circuit
- Failed 5-volt reference voltage regulator
- Faulty engine sensor drawing excessive current
- Wiring harness issues or poor connections
Infiniti DTC P1635 seriousness
The seriousness of DTC P1635 on an Infiniti depends on the underlying cause. Ignoring this issue can lead to poor engine performance, potential damage to engine components, and increased emissions.
How to diagnose DTC P1635 on Infiniti
To diagnose DTC P1635 on an Infiniti, follow these steps:
- Use a diagnostic scanner to retrieve the trouble codes and freeze frame data
- Inspect the wiring harness for any visible damage or loose connections
- Check the 5-volt reference voltage regulator for proper operation
- Test the engine sensors connected to the 5-volt reference circuit for excessive current draw
How to fix DTC P1635 on Infiniti
To fix DTC P1635 on an Infiniti, consider the following steps:
- Repair any damaged wiring or connectors in the 5-volt reference voltage circuit
- Replace the faulty 5-volt reference voltage regulator if necessary
- Replace any engine sensors causing excessive current draw
- Clear the trouble codes and test drive the vehicle to ensure the issue is resolved
How to erase DTC P1635 on Infiniti
To erase DTC P1635 on an Infiniti, use a diagnostic scanner to clear the trouble codes from the vehicle’s engine control module (ECM). Once the codes are cleared, perform a test drive to verify that the CEL does not reappear.
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