Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 961

52B-12
Code No.28, 29, 68 or 69 Front passenger's side
pre-tensioner (squib) system
These diagnosis codes are output if there is abnormal resistance between the input
terminals of the front passenger's side pre-tensioner (squib).
The trouble causes for each diagnosis code No. are as follows.
Code No.
28
29
68
69
SRS check har-
ness (MB991613)
1
Body wiring
harness
Replace the front passenger's side pre-tensioner.
Code No.35 SRS-ECU (deployed air bag) system
This diagnosis code is output after the air bag deploys. If this code is output before
the air bag has deployed, the cause is probably a malfunction inside the SRS-ECU.
Replace the SRS-ECU.
SRS –
Trouble causes
Short in front passenger's side pre-tensioner (squib) or harness short
Open circuit in front passenger's side pre-tensioner (squib) or open harness
Malfunction of connector contact
Short in front passenger's side pre-tensioner (squib) harness leading to the power
supply
Short in front passenger's side pre-tensioner (squib) harness leading to the earth
MUT-II Self-diag code
Disconnect front passen-
ger's side pre-tensioner
connector D-02, and con-
nect the harness side
connector to SRS check
harness connector 1.
Connect the battery (–)
terminal.
Erase diagnosis code
memory.
Are code Nos.28, 29, 68 or 69
output?
NO
Troubleshooting
Probable cause
Malfunction of wiring harnesses or connectors
Malfunction of front passenger's side pre-tensioner
(squib)
Malfunction of SRS-ECU
YES
Check the following connectors: D-02, D-25
OK
Check trouble symptoms.
NG
Check the harness wire between the front passenger's side pre-
tensioner and SRS-ECU.
OK
Replace the SRS-ECU.
Probable cause
Malfunction of SRS-ECU
NG
Repair
NG
Repair