DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
Air Conditioning Amplifier Communication Stop Mode |
Either condition is met:
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
NOTICE:
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DTC check procedure: Turn the ignition switch to ON and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.
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HINT:
PROCEDURE
1. |
SYSTEM CHECK |
(a) Check the vehicle specifications.
Result
Result |
Proceed to |
---|---|
for Automatic Air Conditioning System |
A |
for Manual Air Conditioning System |
B |
B |
GO TO STEP 4 |
|
2. |
CHECK FOR OPEN IN CAN BUS LINES (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the 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 |
---|---|---|
A36-8 (CANH) - A36-9 (CANL) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
*a |
Front view of wire harness connector (to Air Conditioning Amplifier Assembly) |
NG |
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY) |
|
3. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(b) Connect the cable to the negative (-) battery terminal.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
A36-1 (IG+) - Body ground |
Ignition switch ON |
11 to 14 V |
A36-17 (B) - Body ground |
Always |
11 to 14 V |
*a |
Front view of wire harness connector (to Air Conditioning Amplifier Assembly) |
OK |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
4. |
CHECK FOR OPEN IN CAN BUS LINES (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the 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 |
---|---|---|
A14-10 (CANH) - A14-11 (CANL) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
*a |
Front view of wire harness connector (to Air Conditioning Amplifier Assembly) |
NG |
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY) |
|
5. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(b) Connect the cable to the negative (-) battery terminal.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
A14-1 (IG+) - Body ground |
Ignition switch ON |
11 to 14 V |
A14-21 (B) - Body ground |
Always |
11 to 14 V |
*a |
Front view of wire harness connector (to Air Conditioning Amplifier Assembly) |
OK |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
Before replacing the ECM, refer to Registration.
w/o Smart Key System: Click here
w/ Smart Key System: Click here
When the millimeter wave radar sensor assembly is replaced with a new
one, adjustment of the radar sensor beam axis must be ...
Software Incompatibility with Body Control Module "B" (U1331)
DESCRIPTION
This DTC is stored when the destination information of the main body ECU (multiplex
network body ECU) does not match that of the blind spot monitor sensors.
DTC Code
DTC Detection Condition
Trouble Area
U1331
Destination in ...
ECU Malfunction (B1003)
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
B1003
A malfunction in the non-volatile storage of the central gateway ECU
(network gateway ECU) is detected.
Central gateway ECU (network gateway ECU)
PROC ...