Problem Symptoms Table

Use table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.

(w/ Differential locking system): 

• Check that the transfer shift lever is shifted to the L position. 
• When switching differential Free <--> Lock, the indicator light will blink if the gears of the differential lock sleeve are not meshed. If this occurs, when the tires are rotated to apply differential power to the differential, the differential locks and the indicator light lights up. 
  PROBLEM SYMPTOMS TABLE - DRIVE SHAFT, PROPELLER SHAFT AND AXLE
  
  

  Symptom	Suspect Area
  Bottoming	Vehicle (Overloaded) Spring (Weak) Shock absorber (Worn)
  Sways/pitches	Tire (Worn or improperly inflated) Stabilizer bar (Bent or broken) Shock absorber (Worn)
  Front wheel shimmy	Tire (Worn or improperly inflated) Wheel (Out of balance) Shock absorber (Worn) Wheel alignment (Incorrect) Ball joint (Worn) Hub bearing (Loosen or worn) Steering linkage (Loosen or worn) Steering gear (Out of adjustment or broken)
  Abnormal tire wear	Tire (Improperly inflated) Wheel alignment (Incorrect) Shock absorber (Worn) Suspension parts (Worn)
  Noise in front differential	Oil level (Low or wrong grade) Excessive backlash between pinion and ring gear Ring, pinion or side gears (Worn or chipped) Pinion shaft bearing (Worn) Side bearing (Worn)
  Oil leak from front differential	Oil level (Too high or wrong grade) Front differential rear oil seal (Worn or damaged) Side gear oil seal (Worn or damaged) Companion flange (Loosen or damaged) Side gear shaft (Damaged)
  Noise in rear axle	Oil level (Low or wrong grade) Excessive backlash between pinion and ring gear Ring, pinion or side gears (Worn or chipped) Pinion shaft bearing (Worn) Axle shaft bearing (Worn)
  Oil leak from rear axle	Oil seal (Worn or damaged) Rear axle housing (Cracked)
  Oil leak from rear differential	Oil level (Too high or wrong grade) Rear differential front oil seal (Worn or damaged) Companion flange (Loosen or damaged)
  Diff. lock Indicator lights do not light up	Fusible link (Blown) GAUGE fuse (Blown) Bulb (Burned out) Wiring or ground (Faulty)
  Diff. lock Indicator lights do not light up (Diff. lock control switch RR position)	Diff. fuse (Blown) Diff. lock control switch (Faulty) Diff. lock ECU (Faulty) Wiring or ground (Faulty)
  Differential lock does not operate	Diff. lock control switch (Faulty) Diff. lock actuator (Faulty) Diff. lock ECU (Faulty) Differential carrier (Faulty) Wiring or ground (Faulty)
  After differential lock, lock is not released When vehicle speed is at 8 km/h (5 mph) or more	Speed sensor (Faulty) Diff. lock ECU (Faulty) Wiring or ground (Faulty)