Toyota Corolla (E120) 2002–2008 Repair Manual / Introduction / How to troubleshoot ecu controlled
systems
Toyota Corolla (E120): How to troubleshoot ecu controlled systems
- General information
- How to proceed with troubleshooting
- Customer problem analysis
- Symptom confirmation and diagnostic trouble code
- Symptom simulation
- Diagnostic trouble code chart
- Problem symptoms table
- Circuit inspection
- Electronic circuit inspection procedure
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Clutch
Preparation
Sst
Recomended tools
Equipment
Lubricant
...
Inspection procedure
1 Check d squib circuit(airbag sensor assy center – horn button
assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the horn button assy.
release the airbag ...
Circuit description
The side squib (lh) circuit consists of the airbag sensor assy center and
front seat airbag assy (lh).
It causes the srs to deploy when the srs deployment conditions are satisfied.
Dtc b0115/47 is recorded when a short is detected in the side squib (lh)
circuit.
Wiring diagram
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