P1650 – Infiniti DTC

Infiniti DTC P1650 – Quad Driver Module “A” Fault

DTC P1650 meaning on Infiniti

DTC P1650 on an Infiniti refers to a Quad Driver Module “A” Fault. This fault code indicates an issue with the Quad Driver Module “A” circuit in the vehicle’s engine control module.

Infiniti DTC P1650 symptoms

Symptoms of DTC P1650 on an Infiniti may include:

• Check Engine Light illuminated
• Engine misfires or runs rough
• Engine performance issues
• Vehicle may stall or have difficulty starting

Infiniti DTC P1650 causes

Common causes of DTC P1650 on an Infiniti include:

• Faulty Quad Driver Module “A”
• Short circuit or open circuit in the Quad Driver Module “A” circuit
• Corroded or damaged wiring in the circuit
• Defective engine control module (ECM)

Infiniti DTC P1650 seriousness

DTC P1650 should be addressed promptly as it can lead to engine performance issues and potential drivability concerns. Ignoring this fault code may result in further damage to engine components.

How to diagnose DTC P1650 on Infiniti

To diagnose DTC P1650 on an Infiniti, a mechanic may perform the following steps:

1. Use a scan tool to retrieve the fault code and freeze frame data
2. Inspect the Quad Driver Module “A” circuit for any visible damage or corrosion
3. Check the wiring harness and connectors for continuity and proper connections
4. Test the Quad Driver Module “A” for proper function or replace if necessary
5. Verify the repair by clearing the code and test driving the vehicle

How to fix DTC P1650 on Infiniti

To fix DTC P1650 on an Infiniti, the following steps may be taken:

1. Repair any damaged or corroded wiring in the Quad Driver Module “A” circuit
2. Replace the Quad Driver Module “A” if found to be faulty
3. If the engine control module (ECM) is defective, it may need to be replaced or reprogrammed
4. Clear the fault code and perform a test drive to ensure the issue is resolved

How to erase DTC P1650 on Infiniti

To erase DTC P1650 on an Infiniti, a scan tool capable of clearing fault codes is typically used. The following steps can be taken:

1. Connect the scan tool to the vehicle’s OBD-II port
2. Select the option to clear fault codes from the ECM
3. Follow the on-screen prompts to erase the DTC P1650 code
4. Verify that the code has been successfully cleared by rescanning the vehicle

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