SRS ± Troubleshooting
52B-19
Code No.79 or No.93
Side impact sensor (L.H.) communication system
Probable cause
These diagnosis code are output if communication between the side impact sensor
(L.H.) and the SRS±ECU is not possible (code No.79) or abnormal (code No.93).
D Malfunction of wiring harnesses or connectors
D Malfunction of side impact sensor (L.H.)
D Malfunction of SRS-ECU
NO
YES
Replace the side impact sensor (L.H.).
OK
Replace the SRS-ECU.
MUT-II Self-diag code
D Switch over the right side impact sensor (R.H.) and the side
impact sensor (L.H.)
D Erase diagnosis code memory.
Are code Nos.79 and 93 erased and code Nos.89 and 96 output?
Check the following connectors: D-26, D-36
OK
Check trouble symptoms.
NG
Repair
NG
NG
Repair
Check the harness wire between the side impact sensor (L.H.)
and SRS-ECU.
Code No.81, 82, 85, 86
Side air bag module (L.H.) (squib) system
Probable cause
Abnormal resistance is present between input terminals of SRS-ECU for side air
bag module (L.H.) (squib). See table below for what each code tells.
However, as for code Nos. 81 and 82, once trouble is extinguished, SRS warning
lamp will go out. (Diagnosis code will remain stored)
D Defective wiring harnesses or connectors
D Malfunction of side air bag module (L.H.) (squib)
D Malfunction of SRS-ECU
Code No. Trouble causes
81 D Short in side air bag module (L.H.) (squib) or harness short
82 D Open circuit in side air bag module (L.H.) (squib) or open harness
D Poor connector contact
85 D Side air bag module (L.H.) (squib) harness short to power supply
86 D Side air bag module (L.H.) (squib) harness short to earth
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