LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 1996 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - 6.5L Diesel >> Testing >> Tachometer Test >> Tachometer Does Not Function

Tachometer Does Not Function

  1. Disconnect IPC connector. Disconnect generator connector. Connect a self-powered test light between generator connector terminal "A" (White wire) and ground. If test light does not come on, go to next step. If test light comes on, repair short to ground in White wire.
  2. Connect self-powered test light between IPC connector terminal No. 6 and generator connector terminal "A" (White wire). If test light comes on, go to next step. If test light does not come on, repair open circuit in White wire.
  3. Reconnect generator connector. Start engine. Connect voltmeter between IPC connector terminal No. 6 (White wire) and ground. Check for pulsating voltage at or below 14 volts. If voltage is present, replace IPC. If voltage is not present, replace generator.
scientia non olet · About LEMON Manuals