Diagnosis system (HVAC)
U1000 CAN comm circuitSwitch operation
Type A (if so equipped)
The windshield wiper and washer operates when
the ignition switch is placed in the ON position.
Push the lever down to operate the wiper at the
following speed:
Intermittent (INT) or (AUTO) - intermittent
operation can be adjusted by turning the
knob A .
L ...
Main line between DLC and HVAC circuit
Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
ECM
A/C auto amp.
Check the continuity between the data link connector and the A/C ...
P0139, P0159 HO2S2
Description
The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in the exhaust gas on each bank.
Even if switching characteristics of the air fuel ratio (A/F) sensor 1
are shifted, the air-fuel ratio is controlled to stoichiometric, by the signal
...