S-AWC (Super All Wheel Control)
Code No.C1460: S-AWC control mode selector circuit malfunction
OPERATION
The AWC-ECU controls the driving mode by the signal from the S-AWC control mode selector.
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
This diagnostic trouble code is set when the AWC-ECU detects that both NORMAL and OFF-ROAD are in the ON status.
PROBABLE CAUSES
- S-AWC control mode selector malfunction
- Damaged harness wires and connectors
- Malfunction of AWC-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III data list
Check the following data list. (Refer to Data List Reference Table).
- Item 41: SW1 status (NORMAL)
- Item 42: SW2 status (OFF-ROAD)
Q. Is the check result normal?
YES Go to Step 5.
NO Go to Step 2.
STEP 2. S-AWC control mode selector connector, intermediate connector, AWC-ECU connector check: C-41, C-32, C-138, C-139
Q. Is the check result normal?
YES Go to Step 3.
NO Repair the defective connector. Then go to Step 6.
STEP 3. Check the wiring harness between C-41 S-AWC control mode selector connector terminal No.1 and C-139 AWC-ECU connector terminal No.6, and between C-41 S-AWC control mode selector connector terminal No.3 and C-139 AWC-ECU connector terminal No.7.
Check the output line for short circuit.
Q. Is the check result normal?
YES Go to Step 4.
NO Repair the wiring harness. Then go to Step 6.
STEP 4. S-AWC control mode selector inspection
Refer to S-AWC Control Mode Selector Inspection.
Q. Is the check result normal?
YES Go to Step 5.
NO Replace the S-AWC control mode selector (Refer to Service and Repair). Then go to Step 6.
STEP 5. Check whether the diagnostic trouble code is reset.
Q. Is the diagnostic trouble code No.C1460 set?
YES Replace the AWC-ECU (Refer to AWC-ECU Removal and Installation). Then go to Step 6.
NO Intermittent malfunction. How to Cope With Intermittent Malfunctions).
STEP 6. Check whether the diagnostic trouble code is reset.
Q. Is the diagnostic trouble code No.C1460 set?
YES Return to Step 1.
NO This diagnosis is complete.