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Home >> Oldsmobile >> 1991 >> Toronado Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Electronic >> Testing >> English/Metric Test >> With CRT/DID

With CRT/DID

  1. Enter diagnostics. See ENTERING IPC SELF-DIAGNOSIS under ON-VEHICLE DIAGNOSIS  . Put ignition switch in RUN position. Select IPC input II05, and operate English/Metric switch. With switch released, display should indicate HI. With display depressed, display should indicate LO. If display indicates HI with English/Metric switch depressed, go to step 3). If display indicates LO with English/Metric switch released, go to next step.
  2. Remove right switch assembly. If display indicates HI, replace right switch assembly. If display indicates LO, check Light Blue wire for a short to ground. If wire is okay, replace IPC. See INSTRUMENT CLUSTER  .
  3. Remove right switch assembly. Connect a fused jumper wire between terminals No. 6 (Light Blue wire) and No. 7 (Black/White wire) of right switch assembly connector.
  4. If display indicates LO, check connections. If connections are okay, replace right switch assembly. If display indicates HI, connect fused jumper wire between terminal No. 6 of right switch assembly connector and ground.
  5. If display indicates LO, repair Black/White wire for an open circuit. If display indicates HI, remove IPC. Refer to, INSTRUMENT CLUSTER  . Connect an ohmmeter between IPC connector terminal C13 (Light Blue wire) and right switch assembly connector terminal No. 6 (Light Blue wire).
  6. If zero ohms are present, check terminal contact. If terminal contact is okay, replace IPC. See INSTRUMENT CLUSTER  . If high resistance is present, check Light Blue wire for an open circuit.
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