AWD CONTROL UNIT
Reference Value
VALUES ON THE DIAGNOSIS TOOL
NOTE: The following table includes information (items) inapplicable to this vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.
*: The values are changed by throttle opening and engine speed.
TERMINAL LAYOUT
PHYSICAL VALUES
*: The values are changed by depressed accelerator pedal opening and engine speed.
CAUTION: When using circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
Fail-Safe
If any malfunction occurs in AWD electrical system, and control unit detects the malfunction, AWD warning on information display (combination meter) is displayed to indicate system malfunction. And then AWD control unit controls becomes the fail-safe mode depending on DTC.
DTC | Vehicle condition |
|
AWD control changes to front-wheel drive immediately, then AWD control stops, and the vehicle becomes front-wheel drive. |
|
AWD control changes to front-wheel drive immediately, then AWD control stops, and the vehicle becomes front-wheel drive. |
|
No impact to vehicle behavior. |
Protection Function
AWD system activates its protection function (shuts down AWD system temporarily) if AWD system detects high load continuously or the front wheel tire size differs from the rear tire size. (AWD system is automatically restored if AWD system no longer detects any overload or the tire size difference is eliminated.)
DTC | AWD warning (on information display) | Error area and root cause | Contents of protection function |
— | Refer to DLN-16, "INFORMATION DISPLAY (COMBINATION METER) : AWD Warning". | Rear final drive assembly in protection mode. It is not malfunction.
(Internal temperature rise of electronic controlled coupling) |
Shuts down AWD system temporarily (Front wheel drive) |
— | Malfunction in each tire or different tire diameter |
NOTE:
DTC Inspection Priority Chart
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority chart.
DTC Index
NOTE: If some DTCs are displayed at the same time, refer to DLN-22, "DTC Inspection Priority Chart".
Component parts
Component Parts Location
ENGINE ROOM COMPARTMENT
No.
Component
Function
1
IPDM E/R
IPDM E/R control the internal relays and the actuators.
Refer to PCS-5, "RELAY CONTROL SYSTEM : System
Description".
When CAN comm ...
DTC/circuit diagnosis
U1000 CAN COMM CIRCUIT
WITH INTELLIGENT KEY
WITH INTELLIGENT KEY : Description
Refer to LAN-8, "System Description".
WITH INTELLIGENT KEY : DTC Logic
DTC DETECTION LOGIC
NOTE:
U1000 can be set if a module harness was disconnected and reconnected, perhaps
during a repair. Confirm
...
Power supply and ground circuit
COMBINATION METER
COMBINATION METER : Diagnosis Procedure
Regarding Wiring Diagram information, refer to MWI-32, "Wiring Diagram".
1.CHECK FUSES
Check that the following fuses are not blown.
Is the fuse blown?
YES >> Replace the blown fuse after repairing the affected circu ...