Engine Control Module (ECM) Diagnostic Trouble Codes - 6 of 13: Wiring Volvo XC90 I

CHECKING THE WIRING

Check the signal cable between control module terminal #B44 and air conditioning (A/C) relay terminal #4. Check for an intermittent short-circuit to ground.

Other information

1. To connect the breakout box / access the control module, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
3. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
4. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
5. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
6. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000) .

Scheme 229

Scheme 230

Scheme 231

1. Continue Refer to «INFORMATION»(ref-476767-S29219571072012060500000)

CHECKING COMPONENTS AND WIRING

Check the signal cable between control module terminal #B44 and air conditioning (A/C) relay terminal #4. Check for a short-circuit to ground.

Remedy as necessary.

Other information

1. To connect the breakout box / access the control module, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
3. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
4. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
5. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
6. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000) .

1. Continue Refer to «VERIFICATION»(ref-476767-S16043708592012060500000)

CHECKING THE COMPONENT, WIRING AND CONNECTOR

Check turbocharger (TC) control valve connector for intermittent contact resistance or oxidation according to CONTACT RESISTANCE AND OXIDATION and intermittent loose connections according to CONTACT RESISTANCE AND OXIDATION .

Check signal cable between engine control module (ECM) #A38 (#A38) and turbocharger (TC) control valve #2 for an intermittent open-circuit according to OPEN-CIRCUIT, INTERMITTENT FAULTS .

Check power supply turbocharger (TC) control valve between turbocharger (TC) control valve #1 and system relay for an intermittent open-circuit according to OPEN-CIRCUIT, INTERMITTENT FAULTS .

Remedy as necessary

Other information

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) .
2. To access/replace the turbocharger (TC) control valve, see «REPLACING THE TURBOCHARGER (TC) CONTROL VALVE»(ref-476768-S04423060552012060500000) .
3. Turbocharger (TC) control valve #1 has power supply via the system relay.
4. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
5. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
6. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
7. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .

Scheme 232

1. Continue Refer to «INFORMATION»(ref-476767-S13626090442012060500000)

CHECKING COMPONENT AND WIRING

Check signal cable between engine control module (ECM) #A38 (#A38) and turbocharger (TC) control valve #2 for an open-circuit according to OPEN-CIRCUIT, PERMANENT FAULTS .

Check power supply cable between turbo charger valve #1 and system relay for an open-circuit according to OPEN-CIRCUIT, PERMANENT FAULTS .

Remedy as necessary.

Other information

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) .
2. To access/replace the turbocharger (TC) control valve, see «REPLACING THE TURBOCHARGER (TC) CONTROL VALVE»(ref-476768-S04423060552012060500000) .
3. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
4. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
5. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
6. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
7. Turbocharger (TC) control valve #1 has power supply via the system relay.

1. Continue Refer to «VERIFICATION»(ref-476767-S24228522032012060500000)

Check cables between engine control module (ECM) #A38 (#A38) and turbocharger (TC) control valve #2 for an intermittent short-circuit to supply voltage according to SHORT-CIRCUIT TO SUPPLY VOLTAGE, INTERMITTENT FAULTS .

Remedy as necessary

Other information

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) .
2. To access/replace the turbocharger (TC) control valve, see «REPLACING THE TURBOCHARGER (TC) CONTROL VALVE»(ref-476768-S04423060552012060500000) .
3. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
4. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
5. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
6. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
7. Turbocharger (TC) control valve terminal 1 has Ubat power supply from the system relay.

1. Continue Refer to «INFORMATION»(ref-476767-S42468585662012060500000)

Check the cable between #A38 (#A38) and turbocharger (TC) control valve #2 for a short-circuit to supply voltage according to SHORT-CIRCUIT TO SUPPLY VOLTAGE. PERMANENT FAULTS .

Remedy as necessary

Other information

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) .
2. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
3. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
4. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
5. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
6. To access/replace the turbocharger (TC) control valve, see «REPLACING THE TURBOCHARGER (TC) CONTROL VALVE»(ref-476768-S04423060552012060500000)
7. Turbocharger (TC) control valve #1 has Ubat power supply from the system relay.

1. Continue Refer to «VERIFICATION»(ref-476767-S03089321312012060500000)

Check cables between engine control module (ECM) #A38 (#A38) and turbocharger (TC) control valve #2 for an intermittent short-circuit to ground according to SHORT-CIRCUIT TO GROUND, INTERMITTENT FAULTS .

Remedy as necessary

Other information

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. To access/replace the turbocharger (TC) control valve, see «REPLACING THE TURBOCHARGER (TC) CONTROL VALVE»(ref-476768-S04423060552012060500000) .
3. Turbocharger (TC) control valve #1 has Ubat power supply from the system relay.
4. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
5. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
6. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
7. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .

1. Continue Refer to «INFORMATION»(ref-476767-S15163459592012060500000)

Check cable between engine control module (ECM) #A38 (#A38) and turbocharger (TC) control valve #2 for a short-circuit to ground according to SHORT-CIRCUIT TO GROUND, PERMANENT FAULTS .

Remedy as necessary

Other information

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) .
2. To access/replace the turbocharger (TC) control valve, see «REPLACING THE TURBOCHARGER (TC) CONTROL VALVE»(ref-476768-S04423060552012060500000) .
3. Turbocharger (TC) control valve #1 has Ubat power supply from the system relay.
4. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
5. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
6. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
7. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .

1. Continue Refer to «VERIFICATION»(ref-476767-S15895276322012060500000)

CHECKING THE COMPONENT AND WIRING

1. Ignition off. CAUTION: Avoid touching the pins in the control module and the corresponding connector on the cable harness. There is a risk of static discharge which could damage the control module. Discharge yourself and tools to be used by holding the tool's metal part and touching a body part on the car just before starting to work. If the engine cooling fan (FC) cannot be activated at any speed: Check the fuse, power supply cable and ground lead for the engine cooling fan (FC). Check the connector and wiring between the engine control module (ECM) and engine cooling fan (FC) module. Check for damage. Check for an open circuit. Check for a short circuit. If the engine cooling fan (FC) can be activated at one or more speeds: Check the connectors to the engine cooling fan (FC) control module and Engine Control Module (ECM). Check for damage to pins and connections. Also check other connectors and connections that connect cables between Engine Control Module (ECM) and the control module for electric cooling fan. Check the wiring between the engine control module (ECM) and the engine cooling fan (FC) module. Check for damage. Remedy as necessary. Other information: see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000) For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) . For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000) For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) . see «ELECTRIC COOLING FAN»(ref-166146-S25311922602004091400000) see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)

Was a fault detected?

1. YES Refer to «VERIFICATION»(ref-476767-S16506177502012060500000)
2. NO Refer to «REPLACING A COMPONENT»(ref-476767-S06066510962012060500000)

1. Ignition off. CAUTION: Avoid touching the pins in the control module and the corresponding connector on the cable harness. There is a risk of static discharge which could damage the control module. Discharge yourself and tools to be used by holding the tool's metal part and touching a body part on the car just before starting to work. If the engine cooling fan (FC) cannot be activated at any speed: Check the fuse, power supply cable and ground lead for the engine cooling fan (FC). Check the connector and wiring between the engine control module (ECM) and engine cooling fan (FC) module. Check for damage. Check for an open circuit. Check for a short circuit. If the engine cooling fan (FC) can be activated at one or more speeds: Check the connectors to the engine cooling fan (FC) control module and Engine Control Module (ECM). Check for damage to pins and connections. Also check other connectors and connections that connect cables between Engine Control Module (ECM) and the control module for electric cooling fan. Check the wiring between the engine control module (ECM) and the engine cooling fan (FC) module. Check for damage. Remedy as necessary. Other information: see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000) For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) . For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000) For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) . see «ELECTRIC COOLING FAN»(ref-166146-S25311922602004091400000) see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)

Was a fault detected?

1. YES Refer to «VERIFICATION»(ref-476767-S06248075322012060500000)
2. NO Refer to «REPLACING A COMPONENT»(ref-476767-S29020639512012060500000)

1. Ignition off CAUTION: Avoid touching the pins in the control module and the corresponding connector on the cable harness. There is a risk of static discharge which could damage the control module. Discharge yourself and tools to be used by holding the tool's metal part and touching a body part on the car just before starting to work. If the engine cooling fan (FC) cannot be activated at any speed: Check the fuse, power supply cable and ground lead for the engine cooling fan (FC). Check the connector and wiring between the engine control module (ECM) and engine cooling fan (FC) module. Check for damage. Check for an open circuit. Check for a short circuit. If the engine cooling fan (FC) can be activated at one or more speeds: Check the connectors to the engine cooling fan (FC) control module and Engine Control Module (ECM). Check for damage to pins and connections. Also check other connectors and connections that connect cables between Engine Control Module (ECM) and the control module for electric cooling fan. Check the wiring between the engine control module (ECM) and the engine cooling fan (FC) module. Check for damage. Remedy as necessary. Other information: see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000) For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) . For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000) For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) . see «ELECTRIC COOLING FAN»(ref-166146-S25311922602004091400000) see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)

Was a fault detected?

1. YES Refer to «VERIFICATION»(ref-476767-S06915718992012060500000)
2. NO Refer to «REPLACING A COMPONENT»(ref-476767-S06454004962012060500000)

1. Ignition off. CAUTION: Avoid touching the pins in the control module and the corresponding connector on the cable harness. There is a risk of static discharge which could damage the control module. Discharge yourself and tools to be used by holding the tool's metal part and touching a body part on the car just before starting to work. If the engine cooling fan (FC) cannot be activated at any speed: Check the fuse, power supply cable and ground lead for the engine cooling fan (FC). Check the connector and wiring between the engine control module (ECM) and engine cooling fan (FC) module. Check for damage. Check for an open circuit. Check for a short circuit. If the engine cooling fan (FC) can be activated at one or more speeds: Check the connectors to the engine cooling fan (FC) control module and Engine Control Module (ECM). Check for damage to pins and connections. Also check other connectors and connections that connect cables between Engine Control Module (ECM) and the control module for electric cooling fan. Check the wiring between the engine control module (ECM) and the engine cooling fan (FC) module. Check for damage. Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000) For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) . For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000) For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) . see «ELECTRIC COOLING FAN»(ref-166146-S25311922602004091400000) see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)

Was a fault detected?

1. YES Refer to «VERIFICATION»(ref-476767-S39851779882012060500000)
2. NO Refer to «REPLACING A COMPONENT»(ref-476767-S00657309042012060500000)

1. Ignition off. CAUTION: Avoid touching the pins in the control module and the corresponding connector on the cable harness. There is a risk of static discharge which could damage the control module. Discharge yourself and tools to be used by holding the tool's metal part and touching a body part on the car just before starting to work. If the engine cooling fan (FC) cannot be activated at any speed: Check the fuse, power supply cable and ground lead for the engine cooling fan (FC). Check the connector and wiring between the engine control module (ECM) and engine cooling fan (FC) module. Check for damage. Check for an open circuit. Check for a short circuit. If the engine cooling fan (FC) can be activated at one or more speeds: Check the connectors to the engine cooling fan (FC) control module and Engine Control Module (ECM). Check for damage to pins and connections. Also check other connectors and connections that connect cables between Engine Control Module (ECM) and the control module for electric cooling fan. Check the wiring between the engine control module (ECM) and the engine cooling fan (FC) module. Check for damage. Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000) For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) . For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000) For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) . see «ELECTRIC COOLING FAN»(ref-166146-S25311922602004091400000) see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)

Was a fault detected?

1. YES Refer to «VERIFICATION»(ref-476767-S14820811372012060500000)
2. NO Refer to «REPLACING A COMPONENT»(ref-476767-S42850088602012060500000)

1. Ignition off. CAUTION: Avoid touching the pins in the control module and the corresponding connector on the cable harness. There is a risk of static discharge which could damage the control module. Discharge yourself and tools to be used by holding the tool's metal part and touching a body part on the car just before starting to work. If the engine cooling fan (FC) cannot be activated at any speed: Check the fuse, power supply cable and ground lead for the engine cooling fan (FC). Check the connector and wiring between the engine control module (ECM) and engine cooling fan (FC) module. Check for damage. Check for an open circuit. Check for a short circuit. If the engine cooling fan (FC) can be activated at one or more speeds: Check the connectors to the engine cooling fan (FC) control module and Engine Control Module (ECM). Check for damage to pins and connections. Also check other connectors and connections that connect cables between Engine Control Module (ECM) and the control module for electric cooling fan. Check the wiring between the engine control module (ECM) and the engine cooling fan (FC) module. Check for damage. Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000) For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) . For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000) For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) . see «ELECTRIC COOLING FAN»(ref-166146-S25311922602004091400000) see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)

Was a fault detected?

1. YES Refer to «VERIFICATION»(ref-476767-S02916329172012060500000)
2. NO Refer to «REPLACING A COMPONENT»(ref-476767-S03451455862012060500000)

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 ohms.

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

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. For B5xx4T, see «VARIABLE VALVE TIMING SOLENOID, REPLACING»(ref-476775-S00025423592012060500000)
3. For B6xx4T, see «REPLACING THE VARIABLE VALVE TIMING SOLENOID»(ref-476996-S13268864422012060500000) .
4. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
5. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
6. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
7. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
8. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000) .

Scheme 233

1. Continue Refer to «VERIFICATION»(ref-476767-S41165478882012060500000)

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

The resistance must be approximately 3.7 ohms.

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

Remedy as necessary.

Other information

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. For B5xx4T, see «VARIABLE VALVE TIMING SOLENOID, REPLACING»(ref-476775-S00025423592012060500000)
3. For B6xx4T, see «REPLACING THE VARIABLE VALVE TIMING SOLENOID»(ref-476996-S13268864422012060500000) .
4. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
5. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
6. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
7. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
8. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000) .

1. Continue Refer to «VERIFICATION»(ref-476767-S31678866812012060500000)

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 ohms.

Check the signal cable between engine control module (ECM) terminal #A21 (#A21) 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

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. For B5xx4T, see «VARIABLE VALVE TIMING SOLENOID, REPLACING»(ref-476775-S00025423592012060500000)
3. For B6xx4T, see «REPLACING THE VARIABLE VALVE TIMING SOLENOID»(ref-476996-S13268864422012060500000) .
4. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
5. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
6. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
7. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
8. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000) .

1. Continue Refer to «VERIFICATION»(ref-476767-S40982317212012060500000)

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

The resistance must be approximately 3.7 ohms.

Check the signal cable between engine control module (ECM) terminal #A21 (#A21) and camshaft reset valve terminal #2. Check for a short-circuit to supply voltage.

Remedy as necessary.

Other information

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. For B5xx4T, see «VARIABLE VALVE TIMING SOLENOID, REPLACING»(ref-476775-S00025423592012060500000)
3. For B6xx4T, see «REPLACING THE VARIABLE VALVE TIMING SOLENOID»(ref-476996-S13268864422012060500000) .
4. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
5. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
6. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
7. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
8. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000) .

1. Continue Refer to «VERIFICATION»(ref-476767-S23695393922012060500000)

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

Check the power cable between the fuse of the circuit and terminal #1 of the control module cooling fan for open circuit.

Check the signal cable with regard to open circuit.

Take readings between

1. Engine Control Module (ECM) terminal #B48 (#B58) and terminal #2 of control module cooling fan.

If no faults are found via the aforementioned fault tracing, replace the control module cooling fan.

Remedy as necessary.

Other information

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
3. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
4. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
5. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
6. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000) .

1. Continue Refer to «INFORMATION»(ref-476767-S40527882392012060500000)

Check signal cable for an open-circuit and short-circuit to supply voltage.

Take readings between

1. Engine Control Module (ECM) terminal #B48 (#B58) and terminal #2 of control module cooling fan.

If no faults are found via the aforementioned fault tracing, replace the control module cooling fan.

Remedy as necessary.

Other information

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
3. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
4. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
5. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
6. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000) .

1. Continue Refer to «INFORMATION»(ref-476767-S24815543692012060500000)

Check the signal cable. Check for a short-circuit to ground.

Take readings between

1. Engine Control Module (ECM) terminal #B48 (#B58) and terminal #2 of control module cooling fan.

If no faults are found via the aforementioned fault tracing, replace the control module cooling fan.

Remedy as necessary.

Other information

1. To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
3. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
4. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
5. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
6. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000) .

1. Continue Refer to «INFORMATION»(ref-476767-S24843471152012060500000)

Check the cable between Engine control module (ECM) #B46 and Driver information module (DIM) #2 for open circuit according to: CHECKING WIRING AND TERMINALS. PERMANENT FAULT

Remedy as necessary.

Other information

1. To connect the breakout box to the Engine control module (ECM), see: «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. To connect the breakout box to the driver information module (DIM), see: «CONNECTING THE BREAKOUT BOX»(ref-476715-S15759277462012060500000)
3. see «DRIVER INFORMATION MODULE (DIM), REPLACING»(ref-494797-S42034504312012081600000)
4. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
5. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
6. Signal description Driver information module (DIM): «SIGNAL SPECIFICATION»(ref-476716-S07106240042012060500000)

1. Continue Refer to «VERIFICATION»(ref-476767-S07294277952012060500000)

Check the cable between Engine control module (ECM) #B46 and Driver information module (DIM) #2 for open circuit according to: CHECKING WIRING AND TERMINALS. PERMANENT FAULT

Remedy as necessary.

Other information

1. To connect the breakout box to the Engine control module (ECM), see: «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. To connect the breakout box to the driver information module (DIM), see: «CONNECTING THE BREAKOUT BOX»(ref-476715-S15759277462012060500000)
3. see «DRIVER INFORMATION MODULE (DIM), REPLACING»(ref-494797-S42034504312012081600000)
4. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
5. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
6. Signal description Driver information module (DIM): «SIGNAL SPECIFICATION»(ref-476716-S07106240042012060500000)

1. Continue Refer to «VERIFICATION»(ref-476767-S39024281172012060500000)

Check the cable between Engine control module (ECM) #B46 and Driver information module (DIM) #2 for short-circuiting according to: CHECKING WIRING AND TERMINALS. PERMANENT FAULT

Remedy as necessary.

Other information

1. For connection of engine control module (ECM) breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) .
2. To connect the breakout box to the Driver information module (DIM), see: «CONNECTING THE BREAKOUT BOX»(ref-476715-S15759277462012060500000)
3. To access/replace the combined instrument panel, see «DRIVER INFORMATION MODULE (DIM), REPLACING»(ref-494797-S42034504312012081600000)
4. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
5. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
6. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
7. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
8. Signal description Driver information module (DIM): «SIGNAL SPECIFICATION»(ref-476716-S07106240042012060500000)

1. Continue Refer to «VERIFICATION»(ref-476767-S26504895812012060500000)

Check the cable between Engine control module (ECM) #B46 and Driver information module (DIM) #2 for short-circuiting to ground according to: CHECKING WIRING AND TERMINALS. PERMANENT FAULT

Remedy as necessary.

Other information

1. For connection of engine control module (ECM) breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) .
2. To connect the breakout box to the Driver information module (DIM), see: «CONNECTING THE BREAKOUT BOX»(ref-476715-S15759277462012060500000)
3. To access/replace the combined instrument panel, see «DRIVER INFORMATION MODULE (DIM), REPLACING»(ref-494797-S42034504312012081600000)
4. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
5. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
6. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
7. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
8. Signal description Driver information module (DIM): «SIGNAL SPECIFICATION»(ref-476716-S07106240042012060500000)

1. Continue Refer to «VERIFICATION»(ref-476767-S33247884252012060500000)

Check cable between engine control module (ECM) #B46 and combined instrument panel #4 for an intermittent open-circuit according to OPEN-CIRCUIT, INTERMITTENT FAULTS .

Remedy as necessary.

Other information

1. To connect the engine control module (ECM) breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. To connect the combined instrument panel breakout box, see «CONNECTING THE DRIVER INFORMATION MODULE (DIM) TEST BOX»(ref-476715-S41321205472012060500000)
3. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
4. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
5. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
6. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
7. For information about the combined instrument panel connector, see «DRIVER INFORMATION MODULE (DIM) SIGNAL DESCRIPTION»(ref-476716-S27453698592012060500000) .

1. Continue Refer to «INFORMATION»(ref-476767-S02881172432012060500000)

Check the cable between Engine control module (ECM) #B46 and Driver information module (DIM) #4 for open circuit according to: CHECKING WIRING AND TERMINALS. PERMANENT FAULT

Remedy as necessary.

Other information

1. To connect the breakout box to the Engine control module (ECM), see: «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. To connect the breakout box to the driver information module (DIM), see: «CONNECTING THE DRIVER INFORMATION MODULE (DIM) TEST BOX»(ref-476715-S41321205472012060500000)
3. see «DRIVER INFORMATION MODULE (DIM), REPLACING»(ref-494797-S42034504312012081600000)
4. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
5. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
6. Signal description Driver information module (DIM): «DRIVER INFORMATION MODULE (DIM) SIGNAL DESCRIPTION»(ref-476716-S27453698592012060500000)

1. Continue Refer to «VERIFICATION»(ref-476767-S05296658722012060500000)

Check the cable between Engine control module (ECM) #B46 and Driver information module (DIM) #4 for open circuit according to: CHECKING WIRING AND TERMINALS. PERMANENT FAULT

Remedy as necessary.

Other information

1. To connect the breakout box to the Engine control module (ECM), see: «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. To connect the breakout box to the driver information module (DIM), see: «CONNECTING THE DRIVER INFORMATION MODULE (DIM) TEST BOX»(ref-476715-S41321205472012060500000)
3. see «DRIVER INFORMATION MODULE (DIM), REPLACING»(ref-494797-S42034504312012081600000)
4. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
5. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
6. Signal description Driver information module (DIM): «DRIVER INFORMATION MODULE (DIM) SIGNAL DESCRIPTION»(ref-476716-S27453698592012060500000)

1. Continue Refer to «VERIFICATION»(ref-476767-S12511904992012060500000)

Check the cable between engine control module (ECM) #B46 and combined instrument panel #4 for an intermittent short-circuit to supply voltage according to SHORT-CIRCUIT TO SUPPLY VOLTAGE, INTERMITTENT FAULTS .

Remedy as necessary.

Other information

1. To connect the engine control module (ECM) breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. To connect the combined instrument panel breakout box, see «CONNECTING THE DRIVER INFORMATION MODULE (DIM) TEST BOX»(ref-476715-S41321205472012060500000)
3. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
4. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
5. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
6. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
7. For information about the combined instrument panel connector, see «DRIVER INFORMATION MODULE (DIM) SIGNAL DESCRIPTION»(ref-476716-S27453698592012060500000) .

1. Continue Refer to «INFORMATION»(ref-476767-S01161597892012060500000)

Check cable between engine control module (ECM) #B46 and combined instrument panel #4 for a short-circuit to supply voltage according to SHORT-CIRCUIT TO SUPPLY VOLTAGE. PERMANENT FAULTS .

Remedy as necessary.

Other information

1. For connection of engine control module (ECM) breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000) .
2. To connect the combined instrument panel breakout box, see «CONNECTING THE DRIVER INFORMATION MODULE (DIM) TEST BOX»(ref-476715-S41321205472012060500000)
3. To access/replace the combined instrument panel, see «DRIVER INFORMATION MODULE (DIM), REPLACING»(ref-494797-S42034504312012081600000)
4. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
5. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
6. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
7. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
8. For information about the combined instrument panel connector, see «DRIVER INFORMATION MODULE (DIM) SIGNAL DESCRIPTION»(ref-476716-S27453698592012060500000) .

1. Continue Refer to «VERIFICATION»(ref-476767-S12578246572012060500000)

Check the cable between engine control module (ECM) #B46 and combined instrument panel #4 for an intermittent short-circuit to ground according to SHORT-CIRCUIT TO GROUND, INTERMITTENT FAULTS .

Remedy as necessary.

Other information

1. To connect the engine control module (ECM) breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476691-S38062545372012060500000)
2. To connect the combined instrument panel breakout box, see «CONNECTING THE DRIVER INFORMATION MODULE (DIM) TEST BOX»(ref-476715-S41321205472012060500000)
3. For 5 cylinder turbocharged engines -2004, see «SIGNAL DESCRIPTION»(ref-476694-S26303328522012060500000)
4. For 5 cylinder turbocharged engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S29505181092012060500000) .
5. For 6 cylinder engines -2004, see «SIGNAL SPECIFICATION»(ref-476694-S39196199822012060500000)
6. For 6 cylinder engines 2005-, see «SIGNAL SPECIFICATION»(ref-476694-S31890965202012060500000) .
7. For information about the combined instrument panel connector, see «DRIVER INFORMATION MODULE (DIM) SIGNAL DESCRIPTION»(ref-476716-S27453698592012060500000) .

1. Continue Refer to «INFORMATION»(ref-476767-S39430885812012060500000)