Air Conditioning Amplifier Communication Stop Mode [02/2014 - 11/2016]: Procedure
- CHECK FOR OPEN IN CAN BUS LINES (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH LINE)
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the F80 air conditioning amplifier assembly connector.
*a Front view of wire harness connector
(to Air Conditioning Amplifier Assembly) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition F80-11 (CANH) - F80-12 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
Result:
NG
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY)
Result:
OK
See step 2
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.
*a Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)Standard Resistance
Tester Connection Condition Specified Condition F80-14 (GND) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω - Reconnect the cable to the negative (-) auxiliary battery terminal.
- Measure the voltage according to the value(s) in the table below.
*a Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)Standard Voltage
Tester Connection Condition Specified Condition F80-1 (IG+) - Body ground Power switch on (IG) 11 to 14 V F80-21 (B) - Body ground Power switch off 11 to 14 V
Result:
OK
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to REMOVAL [02/2014 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.