Engine Control Module (ECM) Diagnostic Trouble Codes - 2 of 8: Wiring Volvo XC70 II

CHECKING COMPONENTS AND WIRING

Check the fuel pressure sensor's connector for contact resistance and oxidation.

Try with a new fuel pressure sensor if no malfunction is found in the above troubleshooting.

Remedy as necessary.

Other information

1. see «CONNECTING THE BREAKOUT BOX»(ref-495310-S37583422002012082100000)
2. see «SIGNAL SPECIFICATION»(ref-495312-S34327310952012082100000)
3. see «CHECKING WIRING AND TERMINALS»(ref-495309-S37197517212012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S16539766812012082100000)

Check the fuel pressure sensor's connector for contact resistance and oxidation.

Try with a new fuel pressure sensor if no malfunction is found in the above troubleshooting.

Remedy as necessary.

Other information

1. see «CONNECTING THE BREAKOUT BOX»(ref-495310-S12130706792012082100000)
2. see «SIGNAL SPECIFICATION»(ref-495312-S32066528532012082100000)
3. see «CHECKING WIRING AND TERMINALS»(ref-495309-S37197517212012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S23540807092012082100000)

Check the fuel pressure sensor's connector for contact resistance and oxidation.

Try with a new fuel pressure sensor if no malfunction is found in the above troubleshooting.

Remedy as necessary.

Other information

1. see «CONNECTING THE BREAKOUT BOX»(ref-495310-S08896627592012082100000)
2. see «SIGNAL SPECIFICATION»(ref-495312-S41561654002012082100000)
3. see «CHECKING WIRING AND TERMINALS»(ref-495309-S37197517212012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S15839702722012082100000)

Check the fuel pressure sensor's connector for contact resistance and oxidation.

Try with a new fuel pressure sensor if no malfunction is found in the above troubleshooting.

Remedy as necessary.

Other information

1. see «CONNECTING THE BREAKOUT BOX»(ref-495310-S37583422002012082100000)
2. see «SIGNAL SPECIFICATION»(ref-495312-S34327310952012082100000)
3. see «CHECKING WIRING AND TERMINALS»(ref-495309-S37197517212012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S21450012742012082100000)

1. Ignition off
2. Disconnect the engine control module (ECM). Check the signal cable. Check for a short-circuit to ground. Check the signal cable with regard to open circuit. Take readings between control module terminal #A70 (#B10) and mass air flow (MAF) sensor terminal #3. Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-495310-S08896627592012082100000) see «SIGNAL SPECIFICATION»(ref-495312-S41561654002012082100000) see «MASS AIR FLOW (MAF) SENSOR»(ref-495383-S26127942732012082100000) see «CONTENTS»(ref-495309-S30765989192012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S39431676492012082100000)

1. Ignition off
2. Disconnect the engine control module (ECM). Check the signal cable. Check for a short-circuit to ground. Check the signal cable with regard to open circuit. Take readings between control module terminal #A70 (#B10) and mass air flow (MAF) sensor terminal #3. Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-495310-S37583422002012082100000) see «SIGNAL SPECIFICATION»(ref-495312-S34327310952012082100000) see «MASS AIR FLOW (MAF) SENSOR»(ref-495383-S26127942732012082100000) see «CONTENTS»(ref-495309-S30765989192012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S36749572662012082100000)

1. Ignition off Check the mass air flow sensor connections for contact resistance and oxidation. Read the air temperature by clicking the VCT2000 symbol in VIDA (Volvo scan tool). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-495310-S12130706792012082100000) see «SIGNAL SPECIFICATION»(ref-495312-S32066528532012082100000) see «MASS AIR FLOW (MAF) SENSOR»(ref-495383-S19897526302012082100000) see «CHECKING WIRING AND TERMINALS»(ref-495309-S37197517212012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S37453653162012082100000)

1. Ignition off Check the mass air flow sensor connections for contact resistance and oxidation. Read the air temperature by clicking the VCT2000 symbol in VIDA (Volvo scan tool). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-495310-S08896627592012082100000) see «SIGNAL SPECIFICATION»(ref-495312-S41561654002012082100000) see «MASS AIR FLOW (MAF) SENSOR»(ref-495383-S26127942732012082100000) see «CHECKING WIRING AND TERMINALS»(ref-495309-S37197517212012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S20922571962012082100000)

1. Ignition off Check the mass air flow sensor connections for contact resistance and oxidation. Read the air temperature by clicking the VCT2000 symbol in VIDA (Volvo scan tool). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-495310-S37583422002012082100000) see «SIGNAL SPECIFICATION»(ref-495312-S34327310952012082100000) see «MASS AIR FLOW (MAF) SENSOR»(ref-495383-S26127942732012082100000) see «CHECKING WIRING AND TERMINALS»(ref-495309-S37197517212012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S21763680692012082100000)

1. 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»(ref-495310-S08896627592012082100000) see «SIGNAL SPECIFICATION»(ref-495312-S41561654002012082100000) see «COMPONENT SPECIFICATIONS»(ref-495312-S12988358862012082100000) see «MASS AIR FLOW (MAF) SENSOR»(ref-495383-S26127942732012082100000) see «CHECKING WIRING AND TERMINALS»(ref-495309-S37197517212012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S08711225582012082100000)

1. 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»(ref-495310-S37583422002012082100000) see «SIGNAL SPECIFICATION»(ref-495312-S34327310952012082100000) see «COMPONENT SPECIFICATIONS»(ref-495312-S20072563072012082100000) see «MASS AIR FLOW (MAF) SENSOR»(ref-495383-S26127942732012082100000) see «CHECKING WIRING AND TERMINALS»(ref-495309-S37197517212012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S34604598382012082100000)

1. Ignition off.

Check the engine coolant temperature (ECT) sensor. Check for contact resistance and oxidation.

Check the engine temperature sensor's resistance between #1 and #2 (against the sensor).

Remedy as necessary.

Other information

1. see «SIGNAL SPECIFICATION»(ref-495312-S41561654002012082100000)
2. see «CONNECTING THE BREAKOUT BOX»(ref-495310-S08896627592012082100000)
3. see «COMPONENT SPECIFICATIONS»(ref-495312-S12988358862012082100000)
4. see «CHECKING WIRING AND TERMINALS»(ref-495309-S37197517212012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S34731629252012082100000)

1. Ignition off.

Check the engine coolant temperature (ECT) sensor. Check for contact resistance and oxidation.

Check the engine temperature sensor's resistance between #1 and #2 (against the sensor).

Remedy as necessary.

Other information

1. see «SIGNAL SPECIFICATION»(ref-495312-S34327310952012082100000)
2. see «CONNECTING THE BREAKOUT BOX»(ref-495310-S37583422002012082100000)
3. see «COMPONENT SPECIFICATIONS»(ref-495312-S20072563072012082100000)
4. see «CHECKING WIRING AND TERMINALS»(ref-495309-S37197517212012082100000)

1. Continue Refer to «VERIFICATION»(ref-495382-S05229637612012082100000)