SERVICE BRAKES Anti-lock Braking System Troubleshooting
When diagnostic trouble code “22 STOP SW” is displayed
[Explanation]
[Hint]
The ABS ECU outputs this diagnostic trouble code
If the stop light operates normal, the ABS
harness
in
the following cases.
wire for the stop light switch input circuit to the ECU
l
Stop light switch may remain on for more than
is broken or there is a malfunction in the ABS ECU.
15 minutes without the ABS functions.
l
The harness wire for the stop light switch may
be open.
SUB FUSIBLE
LINK
ABS
ECU
Do the stop lights light up
and go out normally?
Check the stop light
lated circuit and repair
problem spots.
Yes
connector and inspect at
the harness side
W h e n t h e b r a k e p e d a l i s
No
Harness wire between
pressed forcefully, does the
voltage between connector
stop light switch and ABS
ECU is broken.
terminal No. 29 and ground
indicate battery voltage?
Repair harness.
Yes
Malfunction of ABS ECU
Replace ABS ECU.
I
TSB Revision
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