Quest V6-3.5L (VQ35DE) (2009)
Cruise Control: Component Tests and General Diagnostics
Component Description
ASCD BRAKE SWITCH
Component 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
this input of two kinds (ON/OFF signal). Refer to See: Powertrain Management/Computers and Control Systems/Description and
Operation/Automatic Speed Control Device (ASCD)/System Description for the ASCD function.
Diagnosis Procedure
ASCD BRAKE SWITCH
Diagnosis Procedure
1.CHECK OVERALL FUNCTION-I
With CONSULT-III
1. Turn ignition switch ON.
2. Select "BRAKE SW1" in "DATA MONITOR" mode with CONSULT-III.
3. Check "BRAKE SW1" indication under the following conditions.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 108 and ground under the following conditions.
OK or NG
OK>> GO TO 2.