DESCRIPTION
The air conditioning control assembly communicates with the air conditioning amplifier assembly through the LIN communication system.
If the LIN communication system malfunctions, the air conditioning amplifier assembly does not operate even if the air conditioning control assembly is operated.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B14B3 |
Lost communication with the air conditioning control assembly. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - POWER SOURCE CIRCUIT) |
(a) Disconnect the A33 air conditioning control assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
A33-8 (IG+) - Body ground |
Ignition switch off |
Below 1 V |
A33-8 (IG+) - Body ground |
Ignition switch ON |
11 to 14 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A33-1 (GND) - Body ground |
Always |
Below 1 Ω |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - AIR CONDITIONING AMPLIFIER ASSEMBLY) |
(a) Disconnect the A33 air conditioning control assembly connector.
(b) Disconnect the A36 air conditioning amplifier assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A33-2 (STX) - A36-11 (LIN1) |
Always |
Below 1 Ω |
A33-2 (STX) or A36-11 (LIN1) - Body ground |
Always |
10 kΩ or higher |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
REPLACE AIR CONDITIONING CONTROL ASSEMBLY |
(a) Replace the air conditioning control assembly (See page ).
HINT:
Since the air conditioning control assembly cannot be inspected while it is removed from the vehicle, replace the air conditioning control assembly with a new or known good one and same problem occurs again.
OK:
Same problem does not occurs.
Result |
Proceed to |
---|---|
OK |
A |
NG (When troubleshooting according to Problem Symptoms Table) |
B |
NG (When troubleshooting according to the DTC) |
C |
A |
END (AIR CONDITIONING CONTROL ASSEMBLY WAS DEFECTIVE) |
B |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
C |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
Center Differential Lock Position Switch (C1282)
DESCRIPTION
DTC C1282 is stored only in test mode.
DTC Code
DTC Detection Condition
Trouble Area
C1282
Stored during test mode.
Harness or connector
Transfer system
Skid control ECU (master cylinder sole ...
Downhill Assist Control Switch Malfunction (Test Mode DTC) (C1379)
DESCRIPTION
DTC C1379 is cleared when the crawl control switch sends a crawl control operation
signal or when test mode ends.
DTC Code
DTC Detection Condition
Trouble Area
C1379
Stored only during test mode.
Crawl ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT INPUT SHAFT
(a) Using a dial indicator and 2 V-blocks, measure the shaft runout.
Maximum runout:
0.03 mm (0.0012 in.)
If the runout is more than the maximum, replace the input shaft.
HINT:
Measure the 3 areas shown in the illustration wit ...