P1645

DTC P1645 BODY ECU MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The ECM receives the operating condition (ON/OFF) of the A/C from the A/C amplifier and it also receives the electrical load information from the body ECU.

The ECM uses these information to control the engine (idle up, etc.).

Step 1:

Step 1 (continued) - 2:

Step 3:

INSPECTION PROCEDURE