Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Supplemental restraint system
Toyota Corolla (E120): Supplemental restraint system
- How to proceed with troubleshooting
- Pre–check
- Diagnostic trouble code chart
- Terminals of ecu
- Problem symptoms table
- Short in d squib circuit
- Open in d squib circuit
- Short in d squib circuit (to ground)
- Short in d squib circuit (to b+)
- Short in p squib circuit
- Open in p squib circuit
- Short in p squib circuit (to ground)
- Short in p squib circuit (to b+)
- Short in side squib (rh) circuit
- Open in side squib (rh) circuit
- Short in side squib (rh) circuit (to ground)
- Short in side squib (rh) circuit (to b+)
- Short in side squib (lh) circuit
- Open in side squib (lh) circuit
- Short in side squib (lh) circuit (to ground)
- Short in side squib (lh) circuit (to b+)
- Seat belt buckle switch (lh) malfunction
- Short in p/t squib (rh) circuit
- Open in p/t (rh) circuit
- Short in p/t squib (rh) circuit (to ground)
- Short in p/t squib (rh) circuit (to b+)
- Short in p/t squib (lh) circuit
- Open in p/t squib (lh) circuit
- Short in p/t squib (lh) circuit (to ground)
- Short in p/t squib (lh) circuit (to b+)
- Airbag sensor assy malfunction
- Harf connection in airbag sensor assy connector
- Side airbag sensor assy (rh) malfunction
- Side airbag sensor assy (lh) malfunction
- Seat position airbag sensor malfunction
- Front airbag sensor (rh) malfunction
- Front airbag sensor (lh) malfunction
- Short in d squib (2nd step) circuit
- Open in d squib (2nd step) circuit
- Short in d squib (2nd step) circuit (to ground)
- Short in d squib (2nd step) circuit (to b+)
- Short in p squib (2nd step) circuit
- Open in p squib (2nd step) circuit
- Short in p squib (2nd step) circuit (to ground)
- Short in squib (2nd step) circuit (to b+)
- Source voltage drop
- Srs warning light circuit malfunction (always light up, when dtc is not output)
- Srs warning light circuit malfunction (does not light up, when ignition switch is turned to on)
- Tc terminal circuit
Other materials:
Overhaul
1. Remove manual transaxle assy
2. Remove clutch release fork sub–assy
Remove the clutch release fork with clutch release bearing
from the transaxle assy.
3. Remove clutch release bearing assy
remove the clutch release bearing assy from the clutch
release fork.
4. Re ...
Precaution
1. Work precautions
(A) vehicle protection
(1) when welding, cover glass, seats, carpets, etc. With
heat resistant fireploof covers to protect them.
(B) safety
(1) never stand in the path of the chain when using a puller
on the body or frame, and be sure to attach a safety
cable.
...
Circuit description
In the diagram below, when the engine is cranked, current flows from terminal
st2 of the ignition switch to
the starter relay coil and also current flows to terminal sta of the ecm (sta
signal).
When the sta signal and ne signal are input to the ecm, tr is turned on, current
flows to the c ...