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 |
|
4. |
CHECK HARNESS AND CONNECTOR |
See page
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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 |
Key-off Operation Function Operates even if Operating Conditions are not Satisfied
DESCRIPTION
When the front doors are closed, each power window regulator motor assembly
can control its power window operation for approximately 45 seconds after
the ignition switch is turned from ON to off by receiving operation permission
...
LIN Communication Master Malfunction (B2287)
DESCRIPTION
This DTC is stored when there is an open, short or ECU communication malfunction
between the power management control ECU and certification ECU (smart key ECU assembly).
DTC No.
DTC Detection Condition
Trouble A ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Meter / Gauge System
DTC Code
Detection Item
Trouble Area
See page
B1500
Fuel Sender Open Detected
1. Harness or connector
2. Combination mete ...