GMC Chevy Colorado 2023 Manual page 77

Wipers and Washers 2-53
G24 Windshield Washer Pump
The G24 Windshield Washer Pump receives a constant
chassis ground. B+ is controlled by the
KR11 Windshield Washer Pump Relay. With voltage
applied, a DC motor spins, connecting and pressurizing
washer fluid from the washer fluid reservoir. The
pressurized washer fluid is deposited on the windshield
through a series of lines and nozzles.
M75 Windshield Wiper Motor
The M75 Windshield Wiper Motor receives a constant
chassis ground. B+ is controlled by the
KR12B Windshield Wiper Relay and KR12C Windshield
Wiper Speed Control Relay being operated by the
K219 Lighting Control Module. The M75 Windshield
Wiper Motor will wiper at low speed when washer
operation is requested.
The M75 Windshield Wiper Motor includes a DC motor
and an internal position switch to indicate the wiper
park position. When wiper operation is requested, the
DC motor spins. The spinning motor is directed to a
wiping motion through the windshield wiper
transmission. When wiper operation is no longer
required, the M75 Windshield Wiper Motor will continue
spinning until the internal position switch indicates it is
in the park position.
B118B Windshield Washer Fluid Level Switch
The B118B Windshield Washer Fluid Level Switch
receives a constant chassis ground. A signal circuit is
monitored by the K219 Lighting Control Module. The
K219 Lighting Control Module applies voltage to the
signal circuit. When the B118B Windshield Washer
Fluid Level Switch is closed, voltage on the signal
circuit is pulled to ground, indicating fluid in the washer
fluid reservoir.
2023 - Colorado Electrical Body Builder Manual