Inspection Procedure

NOTE: Read freeze frame data using hand-held tester or OBD II scan tool, as freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, etc. at the time of the malfunction.

Check if stop lights turns on when brake pedal is depressed.
1. OK: Go to step 4
2. NG: Go to next step
Inspect STOP fuse.

Fig 1: Locating STOP Fuse In R/B No. 3 & J/B No. 3
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

PREPARATION:

Remove the STOP fuse from the R/B No. 3 and J/B No. 3.

CHECK:

Check the continuity of the STOP fuse.

OK:
1. Continuity
1. NG: Replace STOP fuse
2. OK: Go to next step
Check for open or short in harness and connector between battery terminal and stop light switch ( PROCEDURE ).
1. NG: Repair or replace harness and connector.
2. OK: Replace stop light switch.
Check if stop light turns off when brake pedal is released.
1. OK: Go to step 6
2. NG: Go to next step
Check for open or short in harness and connector between battery terminal and stop light switch ( PROCEDURE ).
1. NG: Repair or replace harness and connector.
2. OK: Replace stop light switch.
6 Check for open or short in harness and connector between terminal STP of transmission control ECU and stop light switch ( PROCEDURE ).
1. NG: Repair or replace harness and connector.
2. OK: Replace transmission control ECU.