DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
4WD Control ECU 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. |
CHECK FOR OPEN IN CAN BUS LINES (4 WHEEL DRIVE CONTROL ECU BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the 4 wheel drive control ECU connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F13-20 (CANH) - F13-40 (CANL) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
*a |
Front view of wire harness connector (to 4 Wheel Drive Control ECU) |
NG |
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (4 WHEEL DRIVE CONTROL ECU) |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Disconnect the 4 wheel drive control ECU connector.
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(c) Connect the cable to the negative (-) battery terminal.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F13-21 (+B) - Body ground |
Always |
11 to 14 V |
F12-4 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
*a |
Front view of wire harness connector (to 4 Wheel Drive Control ECU) |
OK |
REPLACE 4 WHEEL DRIVE CONTROL ECU |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSION
(a) The type of ignition switch used on this model differs depending on the specifications
of the vehicle.
The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine ...
Amplifier Box Speaker Assembly
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting
the cable from the negative (-) battery terminal. Therefore, make sure to read the
disconnecti ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the air conditioning system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
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