Stop Light Switch Circuit

LIGHTING: LIGHTING SYSTEM: Stop Light Switch Circuit
- Stop Light Switch Circuit

DESCRIPTION

When the stop light switch is turned on, the current flows to the stop lights to illuminate.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (STOP)

(a) Remove the STOP fuse from the No. 2 engine room relay block.

(b) Measure the resistance according value(s) in the table below.

Standard resistance:





(c) Reinstall the STOP fuse.

NG -- REPLACE FUSE
OK -- Continue to next step.

2. INSPECT BULB (REAR STOP LIGHT BULB)

(a) Remove the rear stop light bulbs.









(b) Remove the high mounted stop light assembly.

(c) Apply battery voltage to the terminals and check that the rear stop light and high mounted stop light illuminates.

OK:

Rear stop light





High mounted stop light





(d) Reinstall the rear stop light bulbs.

(e) Reinstall the high mounted stop light assembly.

Result:





C -- REPLACE HIGH MOUNTED STOP LIGHT ASSEMBLY Removal

B -- REPLACE BULB Disassembly
A -- Continue to next step.

3. INSPECT STOP LIGHT SWITCH

(a) Remove the stop light switch.





(b) Measure the resistance according value(s) in the table below.

Standard resistance:





(c) Reinstall the stop light switch.

NG -- REPLACE STOP LIGHT SWITCH Removal
OK -- Continue to next step.

4. INSPECT STOP LP CTRL RELAY

(a) Remove the STOP LP CTRL relay from the No. 2 engine room relay block.





(b) Measure the resistance according value(s) in the table below.

Standard resistance:





(c) Reinstall the STOP LP CTRL relay.

NG -- REPLACE STOP LP CTRL RELAY
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (FUSE - STOP LIGHT SWITCH)

(a) Disconnect the A3 stop light switch connector.





(b) Measure the voltage according value(s) in the table below.

Standard voltage:





(c) Reconnect the stop light switch connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH - STOP LIGHT CONTROL RELAY)

(a) Disconnect the A3 stop light switch connector.





(b) Remove the STOP LP CTRL relay from the No. 2 engine room relay block.

(c) Measure the resistance according value(s) in the table below.

Standard resistance:





(d) Reconnect the stop light switch connector.

(e) Reinstall the STOP LP CTRL relay.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

7. CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY - REAR STOP LIGHT)

(a) Remove the STOP LP CTRL relay from the No. 2 engine room relay block.





(b) Disconnect the L11 and L14 rear stop light connectors.

(c) Disconnect the T1 high mounted stop light connector.

(d) Measure the resistance according value(s) in the table below.

Standard resistance:





(e) Reinstall the STOP LP CTRL relay.

(f) Reconnect the stop light connectors.

(g) Reconnect the high mounted stop light connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR (REAR STOP LIGHT - BODY GROUND)