DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
Main Body ECU Communication Stop Mode |
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
HINT:
PROCEDURE
1. |
CHECK CAN BUS WIRE FOR DISCONNECTION (MAIN BODY ECU BRANCH WIRE) |
(a) Turn the ignition switch off.
(b) Disconnect the connector of the main body ECU. Text in Illustration
|
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
D48-5 (CANH) - D48-6 (CANL) |
Ignition switch off |
54 to 69 Ω |
NG | ![]() |
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (MAIN BODY ECU BRANCH WIRE) |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL) |
(a) Disconnect the connector of the driver side junction block. Text in Illustration
|
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
2C-24 (BECU) - Body ground |
Always |
11 to 14 V |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
3. |
CHECK HARNESS AND CONNECTOR (GROUND TERMINAL) |
(a) Disconnect the connector of the driver side junction block. Text in Illustration
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
2F-16 (GND1) - Body ground |
Always |
Below 1 Ω |
OK | ![]() |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT) |
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL NO. 2 STEERING RACK BOOT
(a) Apply lithium soap base glycol grease to the inside of the small
opening of a new No. 2 steering rack boot.
(b) Install the No. 2 ste ...
System Description
SYSTEM DESCRIPTION
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It is essential that the navigation system correctly tracks the current vehicle
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Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid
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SYSTEM DESCRIPTION
The TCM uses the signals from the throttle position sensor, air-flow meter, turbine
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