
RS–47
SUPPLEMENTAL RESTRAINT SYSTEM – TROUBLESHOOTING
Diagnostic trouble code clearance
Using diagnosis check wire:
(a) Connect the 2 service wires to terminals Tc and AB of DLC1
or DLC2.
(b) Turn the ignition switch to ACC or ON and wait approx. 6
seconds.
(c) Starting with the Tc terminal, apply body ground alternately
to terminal Tc and terminal AB twice each in cycles of 1.0
seconds. Confirm that body ground is absolute. Finally, keep
applying body ground to terminal Tc.
HINT: When alternately grounding terminals Tc and AB, re-
lease ground from one terminal and immediately apply it to
the other terminal within an interval of 0.2 second. If diagnos-
tic trouble codes do not clear, repeat the above procedure un-
til the codes are cleared.
DLC 1
AB
Terminal
Time of Body Ground
Tc
OFF
1 second
Tc
(± 0.5 sec.)
1 second
(± 0.5 sec.)
Body
Ground
①
③
⑤
DLC 2
Tc
AB
RO7090
AB0066
OFF
AB
Body
Ground
②
④
50 m sec.
ON
Several
seconds
OFF
50 m sec.
R06853
(d) Several seconds after doing the clearing procedure, the SRS
warning light will blink in a 50 m sec. cycle to indicate the
codes have been cleared.
Using TOYOTA hand–held tester:
(a) Hook up the TOYOTA hand–held tester to the DLC1 or DLC2.
(b) Clear the diagnostic trouble codes by following the prompts
on the tester screen.
HINT: Please refer to the TOYOTA hand–held tester opera-
tor's manual for further details.
FI6997