Checking the wiring

WARNING:

Before fault-tracing can begin, the engine cooling fan (FC) connector must be disconnected to prevent the engine cooling fan (FC) engaging. A diagnostic trouble code (DTC) for the engine cooling fan (FC) control module may be stored. After fault-tracing the connector must be reconnected.

NOTE:

This diagnostic trouble code (DTC) is stored if the engine coolant temperature (ECT) sensor freezes. This may happen if the coolant level is low or there is too little glycol in the coolant. Check the engine coolant level and its freezing point. Remedy as necessary.

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Connecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off
Check the ground lead between control module terminal #A60 (#A60) and engine coolant temperature (ECT) sensor terminal #2. Check for an open-circuit
Reinstall the components, reconnect the connectors etc.
Other information
- See Contents
- See Connecting the breakout box
- See Temperature sensor engine coolant, replacing
- See Component specifications
- For 6 cylinder engines -2001, see Signal specification
- For 6 cylinder engines 2002-, see Signal specification
- For 6 cylinder engines -2004, see Signal specification
- For 6 cylinder engines 2005-, see Signal specification .
Fig 3: Identifying Engine Coolant Temperature (ECT) Sensor Connector Terminals
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 4: Identifying Engine Coolant Temperature Sensor
Courtesy of VOLVO CARS OF NORTH AMERICA.

Were any faults found in the ground cable?

YES
Refer to Verification
NO
Refer to Checking engine coolant temperature (ECT)