User's Manual

Troubleshooting Diagnostic Trouble Codes (DTCs):

Valves Miscellaneous

1st. Blink

Code

Location:

Valves

2nd.

Blink

Code

Diagnostic Trouble

Code Description

Repair Information

Differential Lock

Solenoid Open

Verify resistance between Diff solenoid and Diff common. Check for corroded

/damaged wriing or connectors between the Electronic Control Unit (ECU)

and the Diff solenoid.

2 Differential Lock

Solenoid Shorted to

Ground

Verify no continuity between the Diff Lock Solenoid and ground. Check for

corroded/damaged wiring or connectors between the ECU and Diff Lock

Solenoid.

3 Differential Lock

Solenoid Shorted to

Voltage

Verify no continuity between the Diff Lock Solenoid and voltage. Check for

corroded/damaged wiring or connectors between the ECU and Diff Lock

Solenoid.

4 I/O 3 Open Circuit Verify resistance for I/O3 circuit. Check for corroded / damaged wiring or

connector between ECU and I/O.

5 I/O 3 shorted to

Ground

Check for a short circuit condition between ground and the I/O 3 circuit

Verify resistance between Input /Output and ground is open

6 I/O 3 Shorted to

Battery

Check for a short circuit condition between voltage and the I/O 3 circuit

Verify resistance between Input /Output and voltage is open

7 Output Conguration

Error ‑ Diff

Mismatch between ECU conguration and Diff valve

8 Output Conguration

Error ‑ I/O 3

Mismatch between ECU conguration and I/O3