C1240

DTC C1240

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Confirmation Procedure

1) Clear DTC.
2) Push engine switch to change ignition mode to "ON".
3) Check DTC.

DTC Troubleshooting

1.
Was "4WD control system check" performed?
YES -
Go to Step 2.
NO -
Go to 4WD Control System Check 4WD Control System Check.

2. 4WD control module power supply circuit check

Disconnect "L14" connector with ignition mode of keyless push start system in "OFF".
Check for proper terminal connection to "L14" connector.
If connection is OK, check that voltage between "A1" circuit and ground is battery voltage.

Is it in good condition?
YES -
Go to Step 3.
NO -
"4WD" fuse blown, repair or replace defective wire harness.

3. 4WD control module ground circuit check

Check that resistance between "A2" circuit and ground is less than 1 ohms.

Is it in good condition?
YES -
Go to Step 4.
NO -
Repair or replace defective wire harness.

4. Charging system check

Check charging system. Testing and Inspection

Is it in good condition?
YES -
Substitute a known-good 4WD control module and recheck DTC. Service and Repair
NO -
Repair or replace charging system.