3C
DTC 41
DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
41: Vehicle Speed Malfunction
Vehicle speed signal is not input for specified time at driving.
• Vehicle speed sensor and/or its circuit
• Other ECU that inputs vehicle speed signal
• 4WD control module
Wiring Diagram
[A]: 4WD control module connector (View: [a]) 2. To other ECU 4. CPU
1. Vehicle speed sensor 3. 4WD control module      
DTC Confirmation Procedure
1) While keeping engine speed at 3,000 rpm or more, drive for 10 minutes.
DTC Troubleshooting
Step Action YES NO
1
Vehicle speed sensor power supply circuit check
1) Disconnect vehicle speed sensor connector with ignition switch turned OFF.
2) Measure voltage between “BLU/BLK” wire terminal of vehicle speed sensor connector and engine ground with ignition switch turned ON.
Is voltage 10 – 14 V?
Go to Step 2.
Repair or replace vehicle speed sensor power supply circuit.
2
Vehicle speed sensor ground circuit check
1) Measure voltage between “BLU/BLK” wire terminal and “BLK/ORN” wire terminal of vehicle speed sensor connector with ignition switch turned ON.
Is voltage 10 – 14 V?
Go to Step 3.
Repair or replace vehicle speed sensor ground circuit.
3
Vehicle speed sensor signal circuit check
1) Measure voltage between “YEL/GRN” wire terminal of vehicle speed sensor connector and vehicle body ground with ignition switch turned ON.
Is voltage 4 – 6 V?
Replace vehicle speed sensor.
Go to Step 4.
4
Vehicle speed sensor signal circuit check
1) Disconnect 4WD control module connector with ignition switch OFF.
2) Check vehicle speed sensor signal circuit (“YEL/GRN” wire) for open, short to ground and short to power circuit.
Is it in good condition?
Substitute a known-good 4WD control module and recheck.
Go to Step 5.
5
Vehicle speed sensor signal circuit check
1) Disconnect connector of other ECU that inputs vehicle speed sensor signal with ignition switch OFF.
2) Check vehicle speed sensor signal circuit (“YEL/GRN” wire) for open, short to ground and short to power circuit.
Is it in good condition?
Substitute a known-good other ECU that inputs vehicle speed sensor signal and recheck.
Repair or replace vehicle speed sensor signal circuit.