SYSTEM DIAGRAM
Precaution
Problem Symptoms TableBrake Switch "A" / "B" Correlation (P0504)
DESCRIPTION
The stop light switch is a duplex system that transmits 2 signals: STP and ST1-.
These 2 signals are used by the ECM to monitor whether or not the brake system is
working properly. If signals which indicate the brake pedal is being depressed a ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...
Actuator Check
ACTUATOR CHECK
1. ACTUATOR CHECK
(a) Start the engine and warm it up.
(b) Perform the indicator check (See page
).
(c) Press the "Recirculation/Fresh" switch to perform the actuator check.
HINT:
Be sure to perform the actuator check after ...