Checking Components And Wiring

Fig 1: Identifying Ignition OFF

GLL101045

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying Control Module Disconnected

GLL101003

Courtesy of VOLVO CARS CORPORATION

Ignition off
Check the engine coolant temperature (ECT) sensor connector and terminals. Check for contact resistance and oxidation.

Check the engine coolant temperature (ECT) sensor resistance. Take readings between terminals #1 and #2.

Remedy as necessary.

Other information
- see CONNECTING THE BREAKOUT BOX
- see SIGNAL SPECIFICATION
- see COMPONENT SPECIFICATIONS
- see MASS AIR FLOW (MAF) SENSOR
- see CHECKING WIRING AND TERMINALS
Fig 3: Identifying 2-Bit Connector
Courtesy of VOLVO CARS CORPORATION

Fig 4: Identifying Engine Coolant Temperature Sensor
Courtesy of VOLVO CARS CORPORATION

Continue
Refer to VERIFICATION