Mitsubishi MOTORS Space Runner 1998, Workshop Manual

Page: 971 / 1164

SRS -
Troubleshooting
52B-17
Code No.71, 72, 75 or 76 Side air bag module (L.H.) (squib)
system Probable cause
These diagnosis codes are output if the resistance value between the side air bag
module (L.H.) (squib) input terminals of the SRS-ECU is abnormal. The problems
which cause these codes to be output are as follows.
D Malfunction of wiring harnesses or connectors
D Malfunction of side air bag module (L.H.) (squib)
D Malfunction of SRS-ECU
Code No. Trouble causes
71 D Short in side air bag module (L.H.) (squib) or harness short
72
D
Open circuit in side air bag module (L.H.) (squib) or open harness
D Malfunction of connector contact
75 D Short in side air bag module (L.H.) (squib) harness leading to the power supply
76 D Short in side air bag module (L.H.) (squib) harness leading to the earth
NO
Check the following connectors:
C-26, B-16
OK
Check trouble symptoms.
NG
Repair
OK
Replace the SRS-ECU.
NG
Check the harness wire between the side air bag module (L.H.)
(squib) and SRS-ECU.
NG
YES
Repair
SRS check harness (MB991613)
Side air bag wiring harness
MUT-
II
Self-diag code
D Disconnect side air bag module (L.H.) (squib) connector C-26,
and connect the harness side connector to SRS check harness
connector 4.
D Connect the battery (-) terminal.
D Erase diagnosis code memory.
Are code Nos.71, 72, 75 or 76 output?
4
Resistance (3 W )
Side air bag module (L.H.) (squib) connector
Check the following connector:
C-26
OK
NG
Repair
Replace the seat back as-
sembly of the front seat
(L.H.).