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:
Inspection procedure
Hint:
if different dtcs related to different systems that have terminal e2
as the ground terminal are output
simultaneously, terminal e2 may be open.
If dtc p0441 (purge flow), p0446 (vsv for ccv), p0451, p0452 or p0453
(evaporative pressure
sensor) is output with dtc p0442 or p0456, ...
Bluetooth® phone message function
Received messages can be forwarded from the connected Bluetooth® phone, enabling
checking and replying using the multimedia system.
Depending on the type of Bluetooth® phone connected, received messages may not
be transferred to the message inbox.
If the phone does not support the message fu ...
Circuit description
Refer to dtc p0115
Dtc no.
Dtc detection condition
Trouble area
P0125
If the engine coolant temperature (ect) was less than –6.6 °C
(20 °F) when starting the engine, and 20 minutes after the engine
start, the ect sensor still indicates below 20 °C (68 ...