CRX Si L4-1590cc 1.6L SOHC (D16A6) MFI (1988)
Coolant Temperature Gauge: Testing and Inspection
Coolant Temperature Gauge Sender Location
1. Make sure the ignition switch is OFF, then disconnect the YEL/GRN wire from the coolant temperature gauge sender and ground it with a jumper
wire. See: Diagrams/Electrical Diagrams
2. Turn the ignition switch ON.
Check that the pointer of the coolant temperature gauge starts moving toward "H" mark.
CAUTION: Turn the ignition switch OFF before the pointer reaches "H" mark on the gauge dial. Failure to turn the ignition OFF quickly enough
may cause damage to the gauge.
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If the pointer of the gauge does not swing at all, check for:
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Blown No.1 (10A) fuse in the dash fuse box.
-
An open in the YEL or YEL/GRN wire.
Replace the coolant temperature gauge if the fuse and wiring are normal.
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Inspect the gauge sender if the gauge is OK.