Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Supplemental restraint system / Tc terminal circuit / Circuit description
Toyota Corolla (E120): Circuit description
Dtc output mode is set by connecting between tc and cg of the dlc3.
The dtcs are displayed by blinking the srs warning light.
Wiring diagram
Hint
: when each warning light stays blinking, ground short in the wiring until the terminal tc of the dlc3 or internal ground short in each ecu is suspected.
Other materials:
Speed control main switch assy
Replacement
1. Disconnect battery negative terminal
2. Inspect place front wheels facing straight ahead
3. Remove horn button assy
4. Remove steering wheel assy
sst 09950–50013 (09951–05010, 09952–05010, 09953–05020, 09954–05021)
5. Remove speed control main switch assy
Remov ...
Inspection procedure
1 Check un–lock warning switch assy
Disconnect the key unlock warning switch connector.
check the continuity between the terminals of the key unlock
warning switch connector, as shown in the illustration
and table.
Standard:
2 Check wire harness (tvip ecu unlock warni ...
Inspection procedure
1 Inspect fuse(stop)
Turn the ignition switch to off.
remove the stop fuse from the instrument panel j/b.
check continuity of the stop fuse.
Ok: continuity
2 Inspect stop lamp switch assy
Disconnect the stop lamp switch assy connector.
check continuity betw ...