Description
BCM detects the stop lamp status and confirms the stop lamp switch ON/OFF status. BCM confirms the engine start condition according to the stop lamp switch ON/OFF status.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
Depress the brake pedal and wait for at least 1 second.
Check "Self Diagnostic Result" with CONSULT.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to SEC-147, "Wiring Diagram" or SEC-128, "Wiring Diagram".
1.CHECK STOP LAMP SWITCH INPUT SIGNAL
Turn ignition switch OFF.
Disconnect BCM harness connector.
Check voltage between BCM harness connector M18 terminal 26 and ground.
2.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
Disconnect stop lamp switch harness connector.
Check voltage between stop lamp harness connector E38 terminal 3 and ground.
3.CHECK STOP LAMP SWITCH CIRCUIT
1. Check continuity between stop lamp switch harness connector E38 (A) terminal 4 and BCM harness connector M18 (B) terminal 26.
2. Check continuity between BCM harness connector M18 terminal 26 and ground.
4.CHECK STOP LAMP SWITCH
Refer to SEC-44, "Component Inspection".
5.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
Inspection End.
Component Inspection
1.CHECK STOP LAMP SWITCH
Turn ignition switch OFF.
Disconnect stop lamp switch harness connector.
Check continuity between stop lamp switch terminals under the following conditions.
RGB (R: red) signal circuit
Description
Transmit the image displayed with AV control unit with RGB signal to the
display unit.
Diagnosis Procedure
1.CHECK CONTINUITY RGB (R: RED) SIGNAL CIRCUIT
Turn ignition switch OFF.
Disconnect display unit connector M141 and AV control unit
connector
M154.
Check cont ...
Filament
Inspection and Repair
INSPECTION
When measuring voltage, wrap tin foil around the top of the
negative
probe. Then press the foil against the wire with your finger.
Attach probe circuit tester (in Volt range) to middle portion of
each filament.
If a filament is burne ...
A-bag branch line circuit
Diagnosis Procedure
WARNING:
Always observe the following items for preventing accidental
activation.
Before servicing, turn ignition switch OFF, disconnect battery negative
terminal, and wait 3 minutes or more. (To discharge backup capacitor.)
Never use unspecified tester or other measu ...