SRS ± Troubleshooting
52B-16
Code No.34 Connector lock system Probable cause
SRS-ECU is poorly connected.
However, when vehicle condition returns to normal, this code will be automatically
erased, and the SRS warning lamp will go out.
D Defective connectors
D Malfunction of SRS-ECU
Yes
Repair
OK
Replace SRS-ECU.
Check the following connectors: C-32
NG
Is SRS-ECU connector C-32 connected properly?
Repair
No
Code No.35 SRS-ECU (deployed air bag) system Probable cause
This code is displayed after deployment of air bags. If displayed before deployment,
the code indicates malfunction probably present in SRS-ECU.
D Malfunction of SRS-ECU
Replace the SRS-ECU.
Code No.41 Power circuit system (fuse No.6 circuit) Probable cause
Code No.42 Power circuit system (fuse No.8 circuit)
Code No.41 is displayed if voltage between IG
1
terminal (SRS±ECU, terminal 12)
and earth is lower than specified for five successive seconds or more.
Code No.42 is displayed if voltage between IG
1
terminal (SRS±ECU, terminal 9)
and earth is lower than specified for five successive seconds or more.
However, once trouble is extinguished, these codes will be automatically erased,
and SRS warning lamp will go out.
If codes 41 and 42 are displayed together, check the battery first as vehicle may
have discharged battery.
D Defective wiring harnesses or connectors
D Malfunction of SRS-ECU
NG
OK
OK
Measure at SRS-ECU connector C-32.
D Disconnect connector, and measure at harness side.
D Connect negative (±) battery terminal.
D Ignition switch: ON
D Voltage between terminal 16 and body earth (code No.41)
OK: 9 V or more
D Voltage between terminal 13 and body earth (code No.42)
OK: 9 V or more
NG
Replace SRS-ECU.
Check trouble symptoms.
Repair
Check harness wire between SRS-ECU and ignition switch IG
1.
Repair if necessary.
NG
Check the following connectors: C-32, C-75, C-76
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