Checking control module connector

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition Switch OFF Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Control Unit

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
Camshaft position (CMP) sensor disconnected.
Check control module connector for contact resistance and oxidation and remedy according to Contact resistance and oxidation
Control module connected.
Connect an ohmmeter between the camshaft position (CMP) sensor connector terminal 1 (engine control module (ECM) side) and ground.

Fig 4: Identifying 3-Bit Connector
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 5: Identifying Ohmmeter
Courtesy of VOLVO CARS OF NORTH AMERICA.

The ohmmeter should read approximately 0 Ω.

OK
Refer to Fault-tracing information
NOT OK
Refer to Checking for an open-circuit

Fig 1: Identifying Ignition Switch ON Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Control Unit

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
Camshaft position (CMP) sensor disconnected.
Check control module connector for contact resistance and oxidation and remedy according to Contact resistance and oxidation
Control module connected.
Ignition on.
Connect a voltmeter between camshaft position (CMP) sensor terminal 3 (engine control module (ECM) side) and ground.

Fig 4: Identifying 3-Bit Connector
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 5: Identifying Voltmeter
Courtesy of VOLVO CARS OF NORTH AMERICA.

The voltmeter should read battery voltage.

OK
Refer to Fault-tracing information
NOT OK
Refer to Checking for an open-circuit

Fig 1: Identifying Ignition Switch OFF Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Control Unit

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
Camshaft position (CMP) sensor disconnected.
Check control module connector for contact resistance and oxidation and remedy according to Contact resistance and oxidation
Control module connected.
Connect an ohmmeter between the camshaft position (CMP) sensor connector terminal 2 (engine control module (ECM) side) and ground.

Fig 4: Identifying 3-Bit Connector
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 5: Identifying Ohmmeter
Courtesy of VOLVO CARS OF NORTH AMERICA.

The ohmmeter should read 0.5 - 3.0 kΩ.

OK
Refer to Fault-tracing information
NOT OK
Refer to Checking for an open-circuit