Mitsubishi 3000GT 1991, Service Manual

Page: 1040 / 1146

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Troubleshooting
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Reconnect negative terminal of battery, and turn the
ignition key to the “ON” position.
(2) Using the Multi-use Tester, erase the diagnosis code
memory. (Refer to TEST 1.)
(3) Return the ignition key from the “ON” to the
“LOCK” position and then back to the “ON” position.
No
Is the SRS warning light operation
normal?
Turn the ignition key
to the “LOCK” po-
Yes
sition, disconnect
the negative battery
cable and tape the
terminal.
After waiting at
least 30 seconds,
replace the SDU.
(Refer to
Caution
Wait at least 30 seconds after disconnecting the
battery cable before doing any further work. The
SRS system is designed to retain enough voltage
to deploy the air bag for a short time even after
the battery has been disconnected, so serious
injury may result from unintended air bag deploy-
ment if work is done on the SRS system im-
mediately after the battery cable is disconnected.
(2) Use a screwdriver to push in the lock spring of the
lock lever of the SRS diagnosis unit to unlock the lock
lever.
Caution
A double-lock mechanism is employed for the
connector of the SRS diagnosis unit, so care must
be taken ‘not to damage it by using excessive
force or by not disconnecting it correctly.
(3) Disconnect the red connector of the SRS Check
Harness from the SDU while pressing down the lock
of the connector. (Refer to
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