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Home >> GMC >> 2019 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 483 (Component Connector End Views (Q40B-S78)) >> Component Connector End Views >> Q74 Engine Coolant Bypass Valve

Q74 Engine Coolant Bypass Valve

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
GM4994456Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Engine Wiring Harness
  • OEM Connector: 35110578
  • Service Connector: 19371191
  • Description: 5-Way F 1.2 MCON-LL Series, Sealed (NA)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool
I Not required J-35616-16 (L-GN) No Tool Required
Pin Size Color Circuit Function Terminal Type ID Option
1 0.75 BU 2976 Coolant Diverter Valve Actuator Control Open I -
2 0.75 BU / BN 2977 Coolant Diverter Valve Actuator Control Close I -
3 0.5 WH / RD 480 Engine Control Vehicle Sensors 5 Volt Reference 1 I -
4 0.75 BU / GY 2978 Coolant Diverter Valve Position Signal I -
5 0.5 BK / GN 580 Engine Control Sensors Low Reference 2 I -