Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS "Wiring Diagram".
1.CHECK INPUT 1 - 5 CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect BCM and combination switch connectors.
3. Check continuity between BCM connector and combination switch connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connectors.
2.CHECK INPUT 1 - 5 CIRCUIT FOR SHORT
Check for continuity between BCM connector and ground. 
Is the inspection result normal?
YES >> Repair harness or connectors.
NO >> GO TO 3.
3.CHECK BCM OUTPUT VOLTAGE
1. Connect BCM connector.
2. Check voltage between BCM connector and ground.
Is the inspection result normal?
YES >> Replace combination switch.
NO >> Replace BCM. Refer to BCS "Removal and Installation".
Power supply and ground circuitDiagnosis Procedure Regarding Wiring Diagram information, refer to BCS "Wiring Diagram". 1.CHECK FUSES AND FUSIBLE LINK Check that the following fuses and fusible link are not blown.  ...

Diagnosis Procedure Regarding Wiring Diagram information, refer to BCS "Wiring Diagram". 1.CHECK OUTPUT 1 - 5 CIRCUIT FOR OPEN 1. Turn ignition switch OFF. 2. Disconnect BCM and combinat ...
P2857 Clutch A pressure
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
P2857
Clutch A pressure engagement
performance
The auxiliary gearbox gear ratio is 2.232 or
more for the auxiliary gearbox 1GR ratio continuously
for 5 seconds o ...
Low-pressure flexible hose
Removal and Installation
CAUTION:
Perform oil return operation before each refrigeration system disassembly.
However, if a large amount
of refrigerant or oil is detected, do not perform oil return operation. Refer to
HA "Perform Oil
Return Operation".
REMOVAL
Use refrigerant ...