Parking Brake System
Axle SystemTerminals Of Ecu
TERMINALS OF ECU
1. CHECK POWER MANAGEMENT CONTROL ECU
(a) Disconnect the D42 and D43 connectors.
(b) Measure the voltage and resistance according to the value(s) in the table
below.
Tester Connection
Wiring Color
Termi ...
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
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Brake 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 ...