LEMON Manuals: Even more car manuals for everyone
Home >> Volvo >> 2002 >> S80 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes - 8 Of 11 >> ECM-612B: Camshaft Reset Valve, Intake. Signal Missing (B5254T2; B6294S2; B6294T; 2005-2006) >> Signal too low or signal missing >> Checking the wiring

Checking the wiring

Check the fuse before the circuit. If the fuse is blown, check the circuit for a short-circuit to ground.

Check the resistance of the camshaft reset valve between terminals #1 and #2.

The resistance must be approximately 3.7 Ω.

Check the signal cable between engine control module (ECM) terminal #A13 (#A13) and camshaft reset valve terminal #2. Check for an open-circuit. Check for a short-circuit to ground.

Check the power supply cable between system relay terminal #5 and camshaft reset valve terminal #1. Check for an open-circuit.

HINT: With the ignition on and the reset valve and camshaft connector disconnected, the voltage at connector terminal #1 must be approximately U bat. 

Remedy as necessary.

Other information: 

Fig 1: Identifying Camshaft Reset Valve Terminal 1& 2
GLL107918Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Ohm Meter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 3: Identifying Camshaft Position Control
GLL107917Courtesy of VOLVO CARS OF NORTH AMERICA.