Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Supplemental restraint system / Tc terminal circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Check wire harness(dlc3 – airbag sensor assy center)
- Turn the ignition switch to the lock position.
- disconnect the aribag sensor assy center connector.
- measure the resistance according to the value(s) in the table below.
Standard:
2 Check wire harness(cg of dlc3 – body ground)
- Measure the resistance according to the value(s) in the table below.
Standard:
3 Check wire harness(tc of airbag sensor assy center – body ground)
- Measure the resistance according to the value(s) in the table below.
Standard:
Replace air bag sensor assy center
Other materials:
How to proceed with troubleshooting
1 Vehicle brought to workshop
2 Customer problem analysis
3 Problem symptom confirmation
4 Circuit inspection
5 Repair or replace
6 Confirmation test
7 End
Customer problem analysis check
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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 horn button assy
and the airbag sensor assy center.
for the blac ...
Terminals of ecu
Oscilloscope wave (*1)
Hint:
terminal: od – gnd
gauge set: 5 v / div, 50 ms / div
condition: during cruise control driving o/d switch on.
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