On-vehicle inspection
Caution:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
Notice:
The integration relay cannot be disassembled. If there is a malfunction in the circuit of the integration relay, replace the integration relay.
Hint:
Tape the screwdriver tip before use.
If the result is not as specified, replace the efi main fuse.
Standard resistance
If the result is not as specified, replace the integration relay.
Ecm / pcm internal engine off timer performance
Dtc summary
Description
To ensure the accuracy of the evap (evaporative emission) monitor values, the
soak timer, which is built
into the ecm, measures 5 hours (+-15 minutes) from when the ignition switch is
turned off, before the
monitor is run. This allows the fuel to cool down, wh ...
Dtc check / clear
Check dtc (using sst (check wire))
Check the dtcs (present trouble code).
Turn the ignition switch on, and wait for
approximately 60 seconds.
Using sst, connect terminals 13(tc) and 4(cg)
of the dlc3.
Sst 09843-18040
Notice:
Connect the terminals to the correct
positio ...
Oxygen (a/f) sensor signal stuck
Hint:
Although the dtc titles say oxygen sensor, these dtcs relate to the
air-fuel ratio (a/f) sensor.
Sensor 1 refers to the sensor mounted in front of the three-way
catalytic converter (twc) and
located near the engine assembly.
Description
The a/f sensor generates a voltage* ...