Toyota Corolla (E120) 2002–2008 Repair Manual / Introduction / Repair instruction / Precaution / For vehicles equipped with catalytic converter
Toyota Corolla (E120): For vehicles equipped with catalytic converter
Caution
: if large amount of unburned fuel flows into the converter, it may cause overheating and a fire hazard.
To prevent this, observe the following precautions.
- Use only unleaded gasoline.
- avoid prolonged idling.
Avoid running the engine at idle speed for more than 20 minutes.
- avoid a spark jump test.
- Perform a spark jump test only when absolutely necessary. Perform this test as rapidly as possible.
- While testing, never race the engine.
- avoid a prolonged engine compression measurement.
Engine compression measurements must be performed as rapidly as possible.
- do not run the engine when the fuel tank is nearly empty. This may cause the engine to misfire and create an extra load on the converter.
Other materials:
Circuit description
The seat belt buckle switch (lh) circuit consists of the airbag sensor assy
center and front seat inner belt
assy (lh).
Dtc b0126/b0127/27 is recorded when a malfunction is detected in the seat belt
buckle switch (lh) circuit.
Wiring diagram
...
Inspection procedure
Hint:
if dtcs p0115, p0116, p0117, p0118 and p0125 are output
simultaneously, the engine coolant temperature
sensor circuit may be open or short. Perform the troubleshooting of dtc
p0115, p0117 or
p0118 first.
Read freeze frame data using the hand-held tester or the obd ii scan
to ...
Inspection procedure
1 Check p squib circuit(airbag sensor assy center – instrument
panel passenger airbag assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connector between the airbag sensor
assy center and the instrument panel ...