DESCRIPTION
When the engine switch is pushed with the electrical key in the cabin, the power management control ECU receives signals to change the power source mode.
HINT:
To allow use of the Techstream to inspect the push-button start function when the power source mode is off, repeat opening and closing any of the doors. Opening and closing a door establishes communication between the Techstream and the power management control ECU. (Opening and closing a door can also be simulated by operating a door courtesy light switch.)
WIRING DIAGRAM
Refer to DTC B2274 (See page ).
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU) |
See page
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU) |
|
2. |
CHECK HARNESS AND CONNECTOR |
See page
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT ACC RELAY |
See page
NG | ![]() |
REPLACE ACC RELAY |
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4. |
CHECK HARNESS AND CONNECTOR |
See page
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
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5. |
CHECK HARNESS AND CONNECTOR |
See page
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
6. |
CHECK POWER MANAGEMENT CONTROL ECU |
(a) Reconnect the all connectors. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D43-19 (ACCD) - Body ground |
Engine switch off |
Below 1 V |
D43-19 (ACCD) - Body ground |
Engine switch on (IG) |
Output voltage at terminal AM21 or AM22 -2 V or more |
*1 |
Components with harness connected (Power Management Control ECU) |
OK | ![]() |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
NG | ![]() |
REPLACE POWER MANAGEMENT CONTROL ECU |
Torque Sensor Circuit Malfunction (C1511-C1514,C1517)
DESCRIPTION
The torque sensor converts the rotation torque input to the steering wheel into
an electrical signal and sends it to the power steering ECU. Based on this signal,
the ECU detects steering effort.
DTC No.
DTC Detection Co ...
4WD Control ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
4WD Control ECU Communication Stop Mode
"Four Wheel Drive Control" is not displayed on the "CAN Bus
Check" screen ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT STEERING PAD SWITCH ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
...