21. DTC: P0445, Canister Control Valve Driving Stage Control Circuit Voltage Too High (see
Table 1-34)
Table 1-34
S/N Operation Test Results Actions
1
Connect the diagnostic instrument and adapter, and turn the
ignition switch to ON.
Next step
Yes Go to step 4
2
Disconnect the canister control valve from the harness.
Measure the voltage between the pin 1# of the control valve
and the power supply negative pole with a multimeter. Is the
voltage about 12V?
No Next step
Yes
Repair or replace
harness
3
Check for open circuit or short to ground at the power supply
end of the control valve.
No Go to step 2
Yes Next step
4
Measure the resistance between pin 1# and pin 2# with a
multimeter. Is the resistance between 22Ω and 30Ω under the
temperature of 20℃?
No Replace control valve
Yes Diagnosis help
5
Measure the voltage between the pin 1# of the control valve
and the power supply negative pole with a multimeter. Is the
voltage about 3.7V?
No Next step
Yes
Repair or replace
harness
6
Check for short to power supply between the pin 2# of the
control valve and the pin 46# of the ECU.
No Diagnosis help
22. DTC: P0480, A/C Condenser Cooling Fan A Relay Control Circuit Trouble (see Table 1-35)
Table 1-35
S/N Operation Test Results Actions
1
Connect the diagnostic instrument and adapter, and turn the
ignition switch to OFF.
Next step
Yes Go to step 4
2
Disconnect A/C condenser cooling fan relay, and turn the
ignition switch to ON. Check the voltage between the pin
30#, 85# of the relay (power supply end) and the power
supply negative pole. Is the voltage about 12V?
No Next step
Yes
Repair or replace
harness
3
Check for open circuit or short to ground at the power supply
end of the A/C condenser cooling fan relay.
No Go to step 2
Yes Replace relay
4
Check the voltage between the pin 86# of the relay (control
end) and the power supply negative pole. Is the voltage
between 3.7V?
No Next step
Yes
Repair or replace
harness
5
Check for open circuit or short to power supply or ground
between the pin 86# of relay control end and the pin 50# of
the ECU.
No Diagnosis help
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