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Home >> Chevrolet >> 1999 >> Blazer 4D Utility, 4WD, Automatic >> Repair and Diagnosis >> Transmission >> Transfer Case >> Transfer Case - Diagnosis - New Venture 233 (SELECTABLE 4WD) >> Symptom Tests >> More Than One Shift Select Button Remains Lit

More Than One Shift Select Button Remains Lit

  1. If this diagnostic was referred from another test, go to next step. If diagnostic started here, perform FUNCTION TEST  under DIAGNOSIS & TESTING, then go to next step.
  2. If 2HI button remains lit, check for ground in Light Green/Black wire between shift select switch and TCCM. If 4HI button remains lit, check for ground in Tan/Black wire between shift select switch and TCCM. If 4LO button remains lit, check for ground in Purple/White wire between shift select switch and TCCM. If circuit is grounded, go to next step. If circuit is not grounded, see RETRIEVING CODES  under DIAGNOSIS & TESTING.
  3. Ensure ignition is off. Repair ground condition in appropriate wire circuit. Restore system, then go to FUNCTION TEST  under DIAGNOSIS & TESTING.
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