DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
Main Body 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 (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the main body ECU (multiplex network body ECU) connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
M6-14 (CANH) - M6-13 (CANL) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
*a |
Front view of wire harness connector (to Main Body ECU (Multiplex Network Body ECU)) |
NG |
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Remove the main body ECU (multiplex network body ECU). Click here |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
MB-11 (GND1) - Body ground |
Cable disconnected from negative (-) battery terminal |
Below 1 Ω |
(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 |
---|---|---|
MB-30 (ACC) - Body ground |
Ignition switch ACC |
11 to 14 V |
MB-31 (BECU) - Body ground |
Always |
11 to 14 V |
MB-32 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
*1 |
Driver Side Junction Block |
Result |
Proceed to |
---|---|
OK |
A |
NG (for BECU circuit) |
B |
NG (for ACC circuit) |
C |
NG (for IG circuit) |
D |
NG (for GND1 circuit) |
E |
A |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
C |
GO TO LIGHTING SYSTEM (ACC SIGNAL CIRCUIT) |
D |
GO TO LIGHTING SYSTEM (IG SIGNAL CIRCUIT) |
E |
GO TO STEP 4 |
|
3. |
CHECK HARNESS AND CONNECTOR (BECU CIRCUIT) |
(a) Disconnect the driver side junction block connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1F-15 - Body ground |
Always |
11 to 14 V |
*a |
Front view of wire harness connector (to Driver Side Junction Block) |
OK |
REPLACE DRIVER SIDE JUNCTION BLOCK |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR (BECU CIRCUIT) |
4. |
CHECK HARNESS AND CONNECTOR (GND1 CIRCUIT) |
(a) Disconnect the driver side junction block connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1D-5 - Body ground |
Always |
Below 1 Ω |
*a |
Front view of wire harness connector (to Driver Side Junction Block) |
OK |
REPLACE DRIVER SIDE JUNCTION BLOCK |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR (GND1 CIRCUIT) |
Dtc Check / Clear
DTC CHECK / CLEAR
1. START DIAGNOSTIC MODE
HINT:
Illustrations may differ from the actual vehicle screen depending on
the device settings and options. Therefore, some detailed areas may not
be shown exactly the same as on the actual vehicle screen.
If the system cannot enter d ...
Transfer Shift Motor Limit Switch Circuit (P17AC)
DESCRIPTION
When the transfer switches modes, the TL1, TL2 and TL3 terminals of the limit
switch are in one of the ON/OFF combinations listed in the table below.
Terminal
When 2WD
Switching between 2WD and H4
When H4
Switching between H4 and ...
Clutch Release Cylinder(for R156f)
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. DRAIN CLUTCH FLUID
2. REMOVE FRONT PROPELLER SHAFT ASSEMBLY
(See page )
3. DISCONNECT CLUTCH RELEASE CYLINDER TO FLEXIBLE HOSE TUBE
(a) Using a union nut wrench, disconnect the clutch release cylinder
to ...