Infiniti P1164: Infiniti OBD-II Error Code P1164

Symptoms

The ECM has detected a manufacturer-specific computer output circuit fault. A control module output may be inoperative. DTC P1164 is stored in the Infiniti engine control module.

Possible Causes

ECM output driver circuit failure
Relay control circuit open
Actuator circuit short to ground
ECM internal driver fault

Troubleshooting Steps

Step 1: Connect an OBD-II scanner and read DTCs to confirm P1164
DTC P1164 present with freeze frame data
Step 2: Inspect wiring and connectors in the affected circuit for damage, corrosion, or loose pins
Wiring intact, connectors clean and seated
Step 3: Perform component-level testing per manufacturer service manual
Component values within spec or component confirmed faulty
Step 4: Repair or replace the faulty component, clear DTC, and verify no return
DTC cleared and does not return after a road test

How to Reset

Clear the DTC after repair using a diagnostic scanner. The code clears automatically if the fault is not detected for 3 consecutive drive cycles.

Common Replacement Parts

varies: Diagnose and replace the confirmed faulty component (Confirm part number via VIN at a Infiniti dealership)

Frequently Asked Questions

Q: What does P1164 mean?
This manufacturer-specific DTC indicates a computer output circuit system fault. Refer to the vehicle's service manual for the exact diagnostic procedure.
Q: Can I drive with P1164?
Limited driving is possible, but the affected system may not operate correctly. Have the vehicle diagnosed promptly to prevent potential damage.

Infiniti OBD-II Error Code P1164