DTC Logic
DTC DETECTION LOGIC

U1200 AV CONTROL UNIT
DTC Logic

U1201 AV CONTROL UNIT
DTC Logic

U1202 AV CONTROL UNIT
DTC Logic

U1000 CAN comm circuit
U1204 AV control unitP0603 ECM power supply
Description
Battery voltage is supplied to the ECM even when the ignition switch
is turned OFF for the ECM memory function of the DTC memory, the
air-fuel ratio feedback compensation value memory, the idle air volume
learning value memory, etc.
DTC Logic
DTC DETECTION LOGIC
DTC CON ...
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 ...
The parking brake release warning continues displaying, or does not display
Description
The parking brake warning is displayed while
driving the vehicle even though the parking brake is released.
The parking brake warning is not displayed even
though driving the vehicle with the parking brake
depressed.
Diagnosis Procedure
1.CHECK ...