Mitsubishi 3000GT 1991, Service Manual

Page: 1054 / 1146

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Troubleshooting
MB991349
Check Harness
(5) Connect the now disconnected red harness-side SDU
connector to the connector of the SRS Check
Harness.
(6) Check according to the flow chart below using the digital
multi-meter.
View A
SRS Check Harness connector
t- Fuse No.
Ground
, No
Is there continuity between the No. 19
or No. 20 terminal of SRS Check
Ground circuit open
Harness connector and ground?
Yes
Reconnect negative terminal of
No
Is there a voltage of or more be- > Damaged or disconnected
tween the No. 19 or 20 terminal (ground)
and the No. 11 terminal of the SRS ing of fuse No. 11, or damaged
Check Harness connector
or disconnected body wiring
harness.
Yes
Turn the ignition key
to po-
sition, disconnect
the negative battery
cable and tape the
terminal.
(2) After waiting at least
30 seconds, repair or
replace the body wir-
ing harness. (Refer to
Malfunction of the SDU (1) Turn the ignition key
to the “LOCK” po-
sition, disconnect
the negative battery
cable and tape the
terminal.
(2) After waiting at least
30 seconds, replace
the SDU. (Refer to
TSB Revision
I
NOTE IMPORTANT
(1) After repairing the SRS, reconnect the battery cable, erase the diagnosis code memory from the
Multi-use Tester and check the SRS warning light operation to verify the system functions
properly. (Refer to TEST 1.)
(2) SRS Diagnosis Unit