DESCRIPTION
This DTC is stored when there is a problem in the ACC output circuit. The ACC circuit is the circuit that goes from inside the power management control ECU to the ACC relay.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B2274 |
The ACC relay actuation circuit inside the power management control ECU or other related circuit is malfunctioning. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU) |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) |
|
3. |
CHECK HARNESS AND CONNECTOR |
(a) Disconnect the 2G connector from the main body ECU (driver side junction block assembly).
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D43-19 (ACCD) - 2G-9 |
Always |
Below 1 Ω |
D43-19 (ACCD) - Body ground |
Always |
10 kΩ or higher |
*1 |
Front view of wire harness connector (to Power Management Control ECU) |
*2 |
Front view of wire harness connectors (to Main Body ECU (Driver Side Junction Block Assembly)) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK HARNESS AND CONNECTOR |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
INSPECT ACC RELAY |
(a) Remove the ACC relay from the main body ECU (driver side junction block assembly). |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1 - 2 |
Always |
93.8 to 136.4 Ω |
3 - 5 |
When battery voltage is not applied to terminals 1 and 2 |
10 kΩ or higher |
3 - 5 |
When battery voltage is applied to terminals 1 and 2 |
Below 1 Ω |
NG |
REPLACE ACC RELAY |
|
6. |
INSPECT MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
(a) Remove the main body ECU (driver side junction block assembly) (See page ).
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
2G-9 - ACC relay terminal 2 |
Always |
Below 1 Ω |
2G-9 - Body ground |
Always |
10 kΩ or higher |
2F-16 - ACC relay terminal 1 |
Always |
Below 1 Ω |
2F-16 - Body ground |
Always |
10 kΩ or higher |
*1 |
Front view of wire harness connector (to Main Body ECU (Driver Side Junction Block Assembly)) |
*3 |
Front view of wire harness connector (to Main Body ECU (Driver Side Junction Block Assembly)) |
*2 |
Component without relay connected (ACC Relay Terminal) |
- |
- |
OK |
REPLACE POWER MANAGEMENT CONTROL ECU |
NG |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
Perform "Inspection After Repair" after replacing the camshaft, No. 2 camshaft,
camshaft timing gear assembly, camshaft timing exhaust gear assembly or cylinder
head sub-assembly (See page ).
PROCED ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use these procedure to troubleshoot the sliding roof system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...
Customize Parameters
CUSTOMIZE PARAMETERS
1. CUSTOMIZING FUNCTION WITH TECHSTREAM (REFERENCE)
HINT:
When the customer requests a change in a function, first make sure that
the function can be customized.
Be sure to make a note of the current settings before cust ...