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Home >> Dodge and Ram >> 2001 >> Durango 5.9 Z, 4WD, Part Time >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Modules >> Verification Tests >> Transfer Case Verification Test
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Transfer Case Verification Test

CAUTION: If front and rear wheels are at different speeds and a transfer case shift is requested, damage to transfer case may result.
  1. Inspect vehicle to ensure that all components are properly installed and connected. Connect scan tool to Data Link Connector (DLC). Using scan tool, erase DTCs. Ensure all accessories are off and battery is fully charged. Rotate transfer case selector switch to desired position. To select/deselect 2WD/AWD or 4HI, vehicle must be below 55 MPH and all wheels at vehicle speed. To select/deselect 4LO, vehicle must be below 3 MPH or completely stopped, ignition on and shift lever in Neutral (automatic transmission) or clutch pedal depressed (manual transmission). Test drive vehicle in all transfer case ranges.
  2. Apply parking brake. Press recessed Neutral button on transfer case select switch until, Neutral indicator is illuminated. To select/deselect transfer case Neutral, vehicle must be stopped, ignition key must be in ON position with engine off, brake pedal applied and shift lever in Neutral (automatic transmission) or clutch pedal depressed (manual transmission). Move shift lever to Reverse (automatic transmission) or depress clutch, move shift lever into any gear (manual transmission) and release clutch to verify transfer case is in Neutral.
  3. Using scan tool, read DTCs. If no DTCs exist, repair is complete. If any DTCs or symptoms remain, see DIAGNOSTIC TROUBLE CODE IDENTIFICATION  and SYMPTOM IDENTIFICATION  tables under SELF-DIAGNOSTIC SYSTEM.
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