P1510

DTC P1510: ECM (PCM) Back-Up Power Supply Malfunction

Wiring Diagram:

Circuit Description
Battery voltage is supplied to keep DTC memory, values that ECM has learned to control engine, etc. in ECM even when ignition switch is turned OFF.

DTC Detecting Condition and Trouble Area:

DTC Confirmation Procedure
1. Connect scan tool to DLC with ignition switch OFF.
2. Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool and run engine at idle speed for 1 min.
3. Check DTC and pending DTC by using scan tool.

Step 1:

Step 2:

DTC Troubleshooting