Service data and specifications (SDS)
Basic inspectionP0603 ECM power supply
Description
Battery voltage is supplied to the ECM even when the ignition switch
is turned OFF for the ECM memory function of the DTC memory, the
air-fuel ratio feedback compensation value memory, the idle air volume
learning value memory, etc.
DTC Logic
DTC DETECTION LOGIC
DTC CON ...
Indicator lights
For additional information, refer to "Vehicle information
display" in this section.
Front fog light indicator
light
(green)
The front fog light indicator light illuminates when
the front fog lights are on. For additional information,
refer to "Fog light switch" in this section.
Front passen ...
Combination switch output circuit
Diagnosis Procedure
1. CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN
Turn the ignition switch OFF.
Disconnect the BCM and combination switch.
Check continuity between BCM harness connector and combination
switch harness connector
2. CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT
Check ...