Turbo Gauge Resistance

Remove instrument cluster enough to leave harness connectors connected and still access turbo gauge terminals on rear of cluster. Using ohmmeter, check turbo gauge resistance. See Fig 1 or Fig 2 . If resistance is not 72 ohms, replace turbo gauge. If turbo gauge resistance is 72 ohms, test turbo pressure sensor.

Fig 1: Turbo Gauge Test Terminal ID (Celica Turbo & Supra Turbo)

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Fig 2: Turbo Gauge Test Terminal ID (MR2)

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