LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 1997 >> Grand Cherokee Laredo, 4.0 S, AWD >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Computer >> Testing >> Vehicle Communications >> Test 13C - Bus Short To 5 Volts
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test 13C - Bus Short To 5 Volts

  1. Turn ignition off. Using external ohmmeter, measure resistance between terminals C8 (Brown/White wire) and C10 (Violet/Brown wire) on Automatic Temperature Control (ATC) head connector. If resistance is less than 5 ohms, repair short between Brown/White wire and Violet/Brown wire. If resistance is 5 ohms or greater, go to next step.
  2. Measure resistance between terminals C8 (Brown/White wire) and C11 (White/Black wire) on ATC connector. If resistance is less than 5 ohms, repair short between Brown/White wire and White/Black wire. If resistance is 5 ohms or greater, replace ATC head.
NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION  and WIRING DIAGRAM. Perform VERIFICATION TEST VER-1 after each repair.
CAUTION: Always turn ignition off prior to disconnecting any module connector.
scientia non olet · About LEMON Manuals