Diff Lock Indicator Lamp Sometimes Flashes
DIFF LOCK Indicator Lamp Sometimes FlashesSYMPTOM: DIFF LOCK indicator lamp sometimes flashes when it turns ON or OFF during driving.
DIAGNOSTIC PROCEDURE
1. CHECK DIFF LOCK INDICATOR LAMP
Confirm DIFF LOCK indicator lamp when ignition switch is turned to ON.
Does DIFF LOCK indicator lamp turn on?
YES >> GO TO 2.
NO >> Go to RFD-104, "DIFF LOCK Indicator Lamp Does Not Turn ON". Diff Lock Indicator Lamp Does Not Turn On
2. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to RFD-88, "SELF-DIAG RESULTS MODE". Consult-II Function (Diff Lock)
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 3.
3. CHECK SYSTEM FOR DIFFERENTIAL LOCK MODE SWITCH
Perform trouble diagnosis for differential lock mode switch system. Refer to RFD-93, "Differential Lock Mode Switch". Differential Lock Mode Switch
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK SYSTEM FOR DIFFERENTIAL POSITION SWITCH
Perform trouble diagnosis for differential lock position switch system. Refer to RFD-96, "Differential Lock Position Switch". Differential Lock Position Switch
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK SYMPTOM
Check again.
OK or NG
OK >> Inspection End.
NG >> GO TO 6.
6. 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 7.
NG >> Check differential lock control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
7. CHECK DIFFERENTIAL INNER PARTS
1. Disassemble rear final drive assembly.
2. Check differential inner parts.
OK or NG
OK >> Inspection End.
NG >> Repair or replace damaged parts.