Removal and installation
Diagnosis and repair workflowStep lamp circuit
Description
Controls the step lamp (ground side) to turn the step lamp ON and OFF.
Component Function Check
CAUTION: Before performing the diagnosis,
check that the following is normal.
Battery saver output/power supply
Step lamp bulbs
1.CHECK STEP LAMP OPERATION
CONSULT
Turn igni ...
P1572 ASCD brake switch
Description
When the brake pedal is depressed, ASCD brake switch is turned OFF and stop
lamp switch is turned ON.
ECM detects the state of the brake pedal by those two types of input (ON/OFF
signal).
Refer to EC-68, "System Diagram" for the ASCD function.
DTC Logic
DTC DETECTI ...
Main line between HVAC and ABS circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and
loose connection (connector side
and harness side).
Harness connector M1
Harness connect ...