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) |
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE MILLIMETER WAVE RADAR WIRE (w/ Toyota Safety Sense P)
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2. REMOVE MILLIMETER WAVE RADAR SENSOR ASSEMBLY (w/ Toyota Safety Sense P)
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3. REMOVE NO. 1 RADIATOR GRILLE GARNISH
(a) When Replacing the No. 1 Radiator Grille Garnish:
(1) Apply p ...
Torque Converter Clutch Circuit Short to Battery or Open (P074015)
DESCRIPTION
Shift solenoid valve SL is turned on and off by signals from the ECM to control
the hydraulic pressure acting on the lock-up relay valve, which then controls operation
of the lock-up clutch.
DTC No.
DTC Detection Condition
Trouble Area
SA ...
Ambient Temperature Sensor
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT AMBIENT TEMPERATURE SENSOR
(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:
Tester Connection
Condition
...