Differential Lock Solenoid Relay

Differential Lock Solenoid Relay

DIAGNOSTIC PROCEDURE

1. CHECK DIFFERENTIAL LOCK SOLENOID SYSTEM
Perform self-diagnosis. Refer to RFD-88, "SELF-DIAG RESULTS MODE". Consult-II Function (Diff Lock)
Is "RELAY [P1844]" displayed?
YES >> Perform trouble diagnosis for differential lock solenoid. Refer to RFD-99, "Differential Lock Solenoid". Differential Lock Solenoid
NO >> GO TO 2.

2. CHECK DIFFERENTIAL LOCK SOLENOID RELAY SIGNAL

With CONSULT-II
1. Start engine.
2. Select "DATA MONITOR" mode for "DIFF LOCK" with CONSULT-II.








3. Read out ON/OFF switching action of "RELAY ON".
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.

3. CHECK DIFFERENTIAL LOCK CONTROL UNIT
Check differential lock control unit input/output signal. Refer to RFD-85, "Differential Lock Control Unit Input/Output Signal Reference Values". Pinout Values and Diagnostic Parameters
OK or NG
OK >> GO TO 4.
NG >> Check differential lock control unit pin terminals for damage or loose connection with harness connector. If any item is damaged, repair or replace damaged parts.

4. CHECK DTC
Perform the self-diagnosis, after driving the vehicle for a while.
OK or NG
OK >> Inspection End.
NG >> Replace differential lock control unit.