Description
Initial diagnosis of A/C auto amp.
DTC Logic
DTC DETECTION LOGIC

Diagnosis Procedure
1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT
Using CONSULT, perform "SELF-DIAGNOSIS RESULTS" of HVAC.
U1000 CAN comm circuit
B257B, B257C ambient sensorAudio antenna
Location of Antenna
AV control unit
AV control unit antenna feeder
In-line connectors M103, M501
Antenna amp.
Window antenna
Satellite radio antenna feeder
Satellite radio antenna
Window Antenna Repair
ELEMENT CHECK
Attach probe circuit tester (ohm setting) to antenna ...
B2557 vehicle speed
Description
BCM receives the 2 vehicle speed signals via CAN
communication. One signal is transmitted by the "combination
meter". Another signal is transmitted by "ABS actuator and electric unit
(control unit)". BCM compares
both signals to detect the vehicle speed.
DTC Logic
DTC DETECTIO ...
Oil
Description
MAINTENANCE OF OIL LEVEL
The compressor oil is circulating in the system together with the
refrigerant. It is necessary to fill compressor with oil when replacing A/C
system parts or when a large amount of refrigerant leakage is detected. It is
important to always maintain oil le ...