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Low Coolant Indicator: Overview

  1. If LOW COOLANT indicator comes on, but coolant level is okay, go to step 3). If LOW COOLANT indicator does not come on and coolant level is low, disconnect surge tank low coolant switch connector. Turn ignition switch to RUN position. Jumper terminal "A" (Gray wire) of surge tank low coolant switch connector to ground.
  2. If LOW COOLANT indicator does not come on, check Gray wire for open circuit. If wire is okay, replace IPC. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. If LOW COOLANT indicator comes on, connect jumper wire between terminals "A" (Gray wire) and "B" (Black wire) of surge tank low coolant switch connector. If indicator remains on, replace surge tank low coolant switch. If indicator goes out, check Black wire for open circuit.
  3. Disconnect surge tank low coolant switch connector. Turn ignition switch to RUN position. If indicator does not come on, replace surge tank low coolant switch. If indicator comes on, check Gray wire for a short to ground. If wire is okay, replace IPC. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION.
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