Mitsubishi MOTORS Space Runner 1998, Workshop Manual

Page: 966 / 1164

SRS -
Troubleshooting
52B-12
Code No.24, 25, 64 or 65 Front passenger’s side air bag
module (squib) system Probable cause
These diagnosis codes are output if there is abnormal resistance between the input
terminals of the front passengers side air bag module (squib).
The trouble causes for each diagnosis code No. are as follows.
D Malfunction of wiring harnesses or connectors
D Malfunction of front passenger’s side air bag module
(squib)
D Malfunction of SRS-ECU
Code No. Trouble causes
24 D Short in front passenger’s side air bag module (squib) or harness short
25 D Open circuit in front passenger’s side air bag module (squib) or open harness
D Malfunction of connector contact
64 D Short in front passenger’s side air bag module (squib) harness leading to the power
supply
65 D Short in front passenger’s side air bag module (squib) harness leading to the earth
NO
YES
Replace the front passen-
ger’s side air bag module.
OK
Check trouble symptoms.
NG
Repair
OK
Replace the SRS-ECU.
NG
Check the harness wire between the front passenger’s side air
bag module and SRS-ECU.
NG
Repair
SRS check harness (MB991613)
Instrument panel wiring harness
Front passenger’s side air
bag module connector
MUT-
II
Self-diag code
D Disconnect front passenger’s side air bag module connector
B-07, 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.24, 25, 64 or 65 output?
Resistance (3 W )
4
OK
NG
Repair
Check the following connectors:
B-07, B-18
Check the following connector:
B-07
Code No.34 Connector lock system Probable cause
This diagnosis code is output if a poor connection of the SRS-ECU is detected. However,
if the vehicle condition returns to normal, diagnosis code No.34 will be automatically
erased, and the SRS warning lamp will switch off.
D Malfunction of connectors
D Malfunction of SRS-ECU
NG
Repair
OK
Replace the SRS-ECU.
Check the following connectors:
B-18, B-16