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"G" Switch Not Processable

  1. Ensure "G" switch sensor assembly is properly installed. If not properly installed, repair as necessary and perform VERIFICATION TEST VER-1A. If "G" switch is properly installed, turn ignition off. Disconnect and inspect CAB 55-pin connector and "G" switch sensor 3-pin connector. Repair connectors as necessary.
  2. Turn ignition on. With DRB-II in voltmeter mode, probe "G" switch connector terminals individually. If voltage is present, repair short to voltage in that "G" switch circuit. Perform VERIFICATION TEST VER-1A. If voltage is not present at any terminals, go to next step.
  3. Turn ignition off. With DRB-II in ohmmeter mode, probe "G" switch connector terminals individually with remaining lead connected to chassis ground. If resistance at any terminal is less than 5 ohms, repair short to ground in that circuit. Perform VERIFICATION TEST VER-1A.
  4. If resistance at each terminal is more than 5 ohms, connect jumper wire between ground and "G" switch terminals No. 1-3. Check for continuity to ground on CAB terminals No. 25, 26 and 43. If continuity to ground does not exist, repair open in that circuit. Perform VERIFICATION TEST VER-1A. If continuity to ground exists, replace CAB. Perform VERIFICATION TEST VER-1A.
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