C1240

DTC C1240: 4WD Control Module Power Supply Circuit Malfunction

Wiring Diagram










DTC Detecting Condition and Trouble Area






DTC Confirmation Procedure

1) Clear DTC using scan tool.
2) Start engine and drive vehicle at 30 km/h (19 mph) or more vehicle speed at least for 1 min.
3) Stop vehicle and check 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:Motor-Shift Type (Transfer with Shift Actuator).

2. 4WD control module power circuit check

Disconnect 4WD control module connector with ignition switch OFF.
Check for proper connection to "E91" terminal of 4WD control module connector.
If connection is OK, measure voltage between "E91-11" terminal of 4WD control module connector and vehicle body ground with ignition switch ON.

Is it 10 - 14 V?
YES -
Poor "E91-11" connection or intermittent trouble. Check for intermittent referring to Intermittent and Poor Connection Inspection Intermittent and Poor Connection Inspection. If wire and connections are OK, substitute a known-good 4WD control module and recheck.
NO -
"4WD" fuse blown, "WHT" or "BLK" wire is circuit open or circuit short.