A/C AUTO AMP.
A/C AUTO AMP.: Description
COMPONENT DESCRIPTION
A/C Auto Amp. (Air Conditioner Automatic Amplifier)
The A/C auto amp. (1) has a built-in microcomputer that processes information sent from various sensors needed for air conditioner operation. The air mix door motor(s), the mode door motor, the intake door motor, the blower motor and the A/C compressor are then controlled.
When the various switches and temperature control switches are operated, data is input to the A/C auto amp. from the AV switch assembly using CAN communication.
The A/C auto amp. is operated with control mechanisms. Signals from various switches and Potentio Temperature Control (PTC) are directly entered into the A/C auto amp.
Power Supply and Ground Circuit for A/C Auto Amp.
A/C AUTO AMP.: Component Function Check
1.CHECK OPERATION
A/C AUTO AMP.: Diagnosis Procedure
1.CHECK A/C AUTO AMP. POWER SUPPLY
2.CHECK FUSE
Check 10A fuses [Nos. 3, 6 and 17, located in the fuse block (J/B)].
3.CHECK A/C AUTO AMP. GROUND CIRCUIT
19, 39 - Ground: Continuity should exist
A/C SWITCH ASSEMBLY
A/C SWITCH ASSEMBLY: Component Function Check
1.CHECK OPERATION
A/C SWITCH ASSEMBLY: Diagnosis Procedure
1.CHECK A/C SWITCH ASSEMBLY POWER SUPPLY
2.CHECK FUSE
Check 10A fuse [No.3, located in the fuse block (J/B)].
3.CHECK A/C SWITCH ASSEMBLY GROUND CIRCUIT
2 - Ground: Continuity should exist.
A/C DISPLAY UNIT
A/C DISPLAY UNIT: Diagnosis Procedure
1.CHECK A/C DISPLAY UNIT POWER SUPPLY CIRCUIT
6 - Ground: Battery voltage
2.CHECK GROUND CIRCUIT FOR A/C DISPLAY UNIT
1 - Ground: Continuity should exist
Ignition signal
Description
The ignition signal from the ECM is sent to and amplified by the power
transistor. The power transistor turns
ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the
proper high voltage in the coil
secondary circuit.
Component Function Check
1.INSPECTIO ...
B2268 water temp
Description
The engine coolant temperature signal is transmitted from ECM to the
combination meter via CAN communication.
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.PERFORM SELF-DIAGNOSIS OF ECM
Perform "Self Diagnosis Result" of ECM, and repair or replace malfunctioning
parts.
...
Door switch
Description
Detects door open/close condition.
Component Function Check
1.CHECK FUNCTION
With CONSULT
Check door switches DOOR SW-DR, DOOR SW-AS in Data Monitor mode with CONSULT.
Diagnosis Procedure
1.CHECK DOOR SWITCH INPUT SIGNAL
Turn ignition switch OFF.
Check signal between BCM c ...