DTC 65
DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
65: Vacuum Switch Circuit Short
Monitor signal of vacuum switch is ON for specified time even if monitor signal of VSV2 is OFF.
Vacuum switch and/or its circuit
4WD control module
Wiring Diagram
[A]: 4WD control module connector (View: [a]) 2. 4WD control module
1. Vacuum switch 3. CPU
DTC Confirmation Procedure
1) Turn ignition switch to ON position for 1 minutes.
DTC Troubleshooting
Step Action YES NO
Vacuum switch check
1) Check vacuum switch. icon 
Is it in good condition?
Go to Step 2.
Replace vacuum switch.
Check vacuum switch signal circuit
1) Disconnect 4WD control module connector with ignition switch OFF.
2) Check vacuum switch signal circuit (“GRY” wire) for short to ground.
Is it in good condition?
Check VSV2 referring to VSV1 and VSV2 Inspection:Front .
If OK, substitute a known-good 4WD control module and recheck.
Repair or replace vacuum switch signal circuit.