S10/T10 P/U 2WD V6-262 4.3L VIN W CPI (1992)
low coolant temperature, the sender resistance is high. With high coolant temperature the sender resistance is low.
If the coolant temperature exceeds 118°C (245°F), a box around the Coolant Temperature Gage ISO Symbol flashes to indicate an engine overheat
condition.
VOLTMETER DISPLAY
The Voltmeter Display shows the battery voltage. The Voltmeter is connected to the PNK/BLK (39) wire and the BLK (150) wire.
If the generator output is high, low or 0 volts, a box around the Voltmeter ISO Symbol flashes to indicate a problem with the charging system. This
signal is sent to the cluster through the BRN (25) wire.
TACHOMETER DISPLAY
The Tachometer Display shows engine revolutions per minute (RPM). The Tachometer is connected to the WHT (121) wire.
The Tachometer has a total range of 0-5500 RPM. The YELLOW warning region has a range of 4500-5000 RPM and the RED warning region has a
range of 5000-5500 RPM.