Mitsubishi 3000GT 1991, Service Manual

Page: 1031 / 1146

SUPPLEMENTAL RESTRAINT SYSTEM Troubleshooting
Fault Diagnosis code name
No. [Failure mode]
Explanation Service
41
VOLT LOW 1 The multi-purpose fuse (No. 18) is blown or the wire
from the fuse to the SDU is open-circuit or its
resistance value is increased.
It takes at least 5 seconds that the SDU detects
this fault.
Perform TEST 9
42
VOLT LOW 2 The multi-purpose fuse (No. 11) is blown or the wire
from the fuse to the SDU is open-circuit or its
resistance value is increased.
It takes at least 5 seconds that the SDU detects
this fault.
Perform TEST
SRS LMP TRBL 1
The SRS warning light circuits are open or the wire When SRS warning light
Open circuit or from the light to the SDU is grounded. does not extinguish:
43 ground short It takes at least 5 seconds with the light OFF that Perform TEST 11
the SDU detects this fault. When SRS warning light
does not illuminate:
Perform TEST 12
SRS LMP TRBL 2
The SRS warning light drive transistor (integrated Turn the ignition key
44 SRS warning light in the is open-circuit.
to the “LOCK”
drive transistor
tion, the
is open-circuit negative battery
cable and tape the
SRS DIAG. UNIT The EEP ROM or A/D converter (integrated in the terminal.
is defective.
(2) After waiting at
45
least 30 seconds,
replace the SDU.
(Refer to
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) SDU SRS Diagnosis Unit
TSB Revision