Cavalier/Z24 L4-138 2.3L DOHC VIN D MFI (1995)
Coolant Level Switch: Testing and Inspection
SCAN TOOL TESTING
The scan tool displays coolant level as "Low" or "OK."
SCAN TOOL TESTING
The PCM checks the engine coolant level continuously. If the coolant level switch indicates low coolant level at any time, the PCM will send
information through serial data to the Instrument Panel Cluster (IPC) to turn "ON" the "Low Coolant Level" symbol lamp.
Also see Chart C-16B Coolant Level Switch to diagnose the Coolant Level Switch circuit. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection
