Cleaning and protecting your vehicle, performing do-ityourself maintenance, and maintenance information
CompassECU Power Source Circuit
DESCRIPTION
This circuit provides power for main body ECU (driver side junction block assembly)
operation.
WIRING DIAGRAM
PROCEDURE
1.
CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY (MAIN BODY ECU (POWER SOURCE))
...
Engine does not Start
DESCRIPTION
1. ENGINE START SYSTEM FUNCTION
(a) If the engine switch is pressed with the shift lever in P or N and the brake
pedal depressed, the power management control ECU determines that this is an engine
start request.
(b) The certification ECU (sm ...
ECM Power Source Circuit
DESCRIPTION
When the ignition switch is turned to ON, the battery voltage is applied to IGSW
of the ECM. The output signal from the MREL terminal of the ECM causes a current
to flow to the coil, closing the contact of the engine room junction block assemb ...