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Home >> Volvo >> 1997 >> S90 AW30-40 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Component Tests >> Temperature Gauge Tests >> S90 & V90

S90 & V90

  1. Gauge can be checked with 68-Ohm Test Resistor (999-5824-1). Disconnect negative battery cable. Disconnect coolant temperature sending unit wire. Connect test resistor between ground and disconnected wire. Reconnect battery cable and turn ignition on.
  2. If gauge is okay, needle should sweep to center of Red section. If gauge is okay, sending unit is defective. If needle is not in Red section, gauge is defective. If needle does not move, check wiring. If wiring is okay, replace gauge.
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