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Home >> GMC >> 1995 >> Jimmy 2D Utility, RWD, Automatic >> Repair and Diagnosis >> Transmission >> Transfer Case >> Transfer Case - Diagnosis - New Venture 233 & 243 >> Self-Diagnostic System >> Clearing Diagnostic Trouble Codes

Clearing Diagnostic Trouble Codes

  1. Turn ignition off. Remove jumper wire. On "T" series trucks, remove PK LPS (20-amp) fuse from fuse block. On "K" series trucks, remove T-CASE fuse from fuse block.
  2. On all models, wait at least 2 1/2 minutes and reinstall fuse. Fuse must be removed from fuse block. Cycle ignition on and off 5 times. Now all DTCs will be purged from TCCM memory.
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