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Engine with Mountings and Equipment- Engine Control (Convertible): Other Volvo C70 I

Engine Control Systems 25 illustrations ~2751 words

Tables 2-9

CodeText: km / milesCodeText: km / miles
1-1-102-3-216.000 / 8.000
1-1-21.000 / 5002-3-317.000 / 8.500
1-1-32.000 / 1.0003-1-118.000 / 9.000
1-2-13.000 / 1.5003-1-219.000 / 9.500
1-2-24.000 / 2.0003-1-320.000 / 10.000
1-2-35.000 / 2.5003-2-121.000 / 10.500
1-3-16.000 / 3.0003-2-222.000 / 11.000
1-3-27.000 / 3.5003-2-323.000 / 11.500
1-3-38.000 / 4.0003-3-124.000 / 12.000
2-1-19.000 / 4.5003-3-225.000 / 12.500
2-1-210.000 / 5.0003-3-326.000 / 13.000
2-1-311.000 / 5.5004-1-127.000 / 13.500
2-2-112.000 / 6.0004-1-228.000 / 14.000
2-2-213.000 / 6.5004-1-329.000 / 14.500
2-2-314.000 / 7.0004-2-130.000 / 15.000
2-3-115.000 / 7.5004-4-4>30.000 / >15.000

1-2-1 Mileage since last service

CodeText: monthsCodeText: months
1-1-102-2-314
1-1-212-3-115
1-1-322-3-216
1-2-132-3-317
1-2-243-1-118
1-2-253-1-219
1-3-163-1-320
1-3-273-2-121
1-3-383-2-222
2-1-193-2-323
2-1-2103-3-124
2-1-3113-3-225
2-2-1124-4-4>25
2-2-213

1-2-2 Time since last service

CodeText: hoursCodeText: hours
1-1-101-3-2700
1-1-21001-3-3800
1-1-32002-1-1900
1-2-13002-1-21.000
1-2-24002-1-31.100
1-2-35004-4-4>1.100
1-3-1600

1-2-3 Engine hours since last service

CodeText: marketCodeText: market
1-1-1Europe, Canada and Eastern Europe1-1-6Overseas / TURBO
1-1-2Europe, Canada and Eastern Europe / TURBO1-1-7USA / TURBO
1-1-3Overseas, other1-1-8GB, Hong Kong / TURBO
1-1-4USA1-6-1Fault
1-1-5GB, Hong Kong

1-2-4 Speedometer

CodeText: km / milesCodeText: km / miles
1-1-15.000 / 2.5001-1-415.000 / 10.000
1-1-27.500 / 5.0001-1-520.000 / 12.500
1-1-310.000 / 7.5001-6-1Fault

1-3-1 Mileage interval for service reminder indicator (SRI) activation

CodeText: monthsCodeText: months
1-1-161-1-424
1-1-2121-6-1Fault
1-1-318

1-3-2 Actual time interval for service reminder indicator (SRI) activation

CodeText: hoursCodeText: hours
1-1-15001-1-31.000
1-1-27501-6-1Fault

1-3-3 Engine hours interval for service reminder indicator (SRI) activation

CodeText: Engine speed (RPM)
1-1-18000 RPM
1-1-27000 RPM
1-1-35000 RPM
1-6-1Fault

1-3-4 Tachometer, adjusting engine speed (RPM) reading

Scheme 97

Scheme 97

Diagnostic trouble code (DTC) 1-6-1 in tables 4-8 above, means that the fault is in the combined instrument panel.

  1. Read off the response code again.
  2. If diagnostic trouble code (DTC) 1-6-1 recurs replace the combined instrument panel. According to «Instrument cluster»(ref-403964-S13401205202011061000000) .

Manual data entry

First go into diagnostic test mode (DTM) 5 and select the service parameter you want to change. Then read off the code stored and within 30 seconds go into diagnostic test mode (DTM) 6 and enter the new code. As follows

  1. Switch on ignition.
  2. Select position 7 on data link connector (DLC) A.
  3. Press the button five times, briefly but distinctly.

You are now in diagnostic test mode (DTM) 5.

Indicate the service parameter code you want to change

Enter the code for the service parameter contained in Information and check , the first column.

  1. Enter the first digit while the LED is still lit.
  2. Wait until the LED is lit and enter the second digit.
  3. Wait until the LED is lit and enter the third digit of the code. Read off the response code stored.

Reading off DTCs manually

  1. Switch ignition on.
  2. Select DLC A terminal 7.
  3. Press button once , briefly but firmly.

You are now in DTM 1.

Note down any DTCs

Watch the LED, count the number of flashes and note down the DTC.

  1. Press the button again to see if there are any more DTCs to come. DTCs are displayed in the order in which they are stored. Once all DTCs have been displayed, they are repeated in the same order.
  1. To erase DTCs, see «Erasing DTCs»(ref-403964-S04423078402011061000000) .

DTCs

CodeDisplay text
1-1-1No faults found by diagnostic system
1-1-2Fuel gauge sensor short-circuit
1-1-3Fuel gauge sensor open-circuit
1-2-1Temperature signal interval too short
1-2-2Temperature signal interval too long
1-2-3Digital output 48 pulse short-circuit to supply
1-3-1Digital output 12 pulse short-circuit to supply
1-3-2No RPM sensor signal
1-3-3Tank signal to trip computer short-circuit to supply

Scheme 98

Scheme 98: Erasing DTCs

DTCs cannot be erased until all DTCs in store have been read at least once, i.e. until the first DTC appears a second time.

To erase DTCs in DTM 1, proceed as follows

  1. Press button and hold down for more than 5 seconds.
  2. Release button. LED will come on and stay on after 3 seconds.
  3. Press button again and hold down for at least 5 seconds.
  4. Release button. LED will go out.

DTCs are now erased.

Checking that DTCs are erased

Switch ignition off, then switch it on again. Check that DTCs are erased by pressing the button briefly but firmly once (as above).

If display reads 1-1-1, this means all DTCs have been erased.

If not, start again from above.

Expose dashboard

WARNINGCars equipped with a Supplemental Restraint System (SRS) must be treated extra carefully when repairs are being made. This is to help prevent: 1. Injuries when carrying out a repair. 2. Damage or malfunction of the SRS system. Repair to either the SRS itself or a related system or component must be carried out by an authorized Volvo workshop. Refer to the appropriate SRS article for complete system information.
  1. Remove battery - lead.

Scheme 99

Scheme 99: Removing cover
  1. Remove glove compartment holders.
  2. Remove the six screws holding the glove compartment and remove the glove compartment.

Scheme 100

Scheme 100
  1. If a passenger-side airbag is fitted, remove the 4 mounting screws from the underneath of the module.

Scheme 101

Scheme 101
  1. Remove cover washers and screws to side defroster vents.
  2. Remove panel vents as follows: turn down and pull out or pry off gently with a screwdriver at the side and pull out. Remove both vent and air duct on RH side.

Scheme 102

Scheme 102
  1. Remove speaker grills on both sides.
  2. Remove speakers. Push plastic plugs down in center.
  3. Undo connector.

Scheme 103

Scheme 103
  1. Unscrew the 12 mounting screws holding the cover panel. Cars fitted with passenger-side airbags have a screw missing at the top of the glove compartment. Cars not fitted with passenger-side airbags have a screw missing at the top by the RH speaker (marked 2 in figure).
  2. Lift cover panel off carefully.

Once you have removed the cover panel, you can connect the test box and use it for fault-tracing with the dashboard.

  1. If a passenger-side airbag is fitted, remove the 4 mounting screws from the underneath of the module.
  1. Remove cover washers and screws to side defroster vents.
  2. Remove panel vents as follows: turn down and pull out or pry off gently with a screwdriver at the side and pull out. Remove both vent and air duct on RH side.
  1. Remove speaker grills on both sides.
  2. Remove speakers. Push plastic plugs down in center.
  3. Undo connector.
  1. Unscrew the 12 mounting screws holding the cover panel. Cars fitted with passenger-side airbags have a screw missing at the top of the glove compartment. Cars not fitted with passenger-side airbags have a screw missing at the top by the RH speaker (marked 2 in figure).
  2. Lift cover panel off carefully.

Once you have removed the cover panel, you can connect the test box and use it for fault-tracing with the dashboard.

  1. Remove cover washers and screws to side defroster vents.
  2. Remove panel vents as follows: turn down and pull out or pry off gently with a screwdriver at the side and pull out. Remove both vent and air duct on RH side.
  1. Remove speaker grills on both sides.
  2. Remove speakers. Push plastic plugs down in center.
  3. Undo connector.
  1. Unscrew the 12 mounting screws holding the cover panel. Cars fitted with passenger-side airbags have a screw missing at the top of the glove compartment. Cars not fitted with passenger-side airbags have a screw missing at the top by the RH speaker (marked 2 in figure).
  2. Lift cover panel off carefully.

Once you have removed the cover panel, you can connect the test box and use it for fault-tracing with the dashboard.

  1. Remove speaker grills on both sides.
  2. Remove speakers. Push plastic plugs down in center.
  3. Undo connector.
  1. Unscrew the 12 mounting screws holding the cover panel. Cars fitted with passenger-side airbags have a screw missing at the top of the glove compartment. Cars not fitted with passenger-side airbags have a screw missing at the top by the RH speaker (marked 2 in figure).
  2. Lift cover panel off carefully.

Once you have removed the cover panel, you can connect the test box and use it for fault-tracing with the dashboard.

  1. Unscrew the 12 mounting screws holding the cover panel. Cars fitted with passenger-side airbags have a screw missing at the top of the glove compartment. Cars not fitted with passenger-side airbags have a screw missing at the top by the RH speaker (marked 2 in figure).
  2. Lift cover panel off carefully.

Once you have removed the cover panel, you can connect the test box and use it for fault-tracing with the dashboard.

When replacing the dashboard

  1. VDO: Code for right market and program in mileage and select service interval as shown in «Diagnostic test mode (DTM) 5 - Reading off data»(ref-403964-S27803021592011061000000) and «Diagnostic test mode (DTM) 6 - Data entry»(ref-403964-S17694826262011061000000) .

Note. It is important to do this in the right order and as shown under DTM 6.

  1. Read off and erase any DTCs.
  1. YAZAKI: Write in the service and warranty manual that the dashboard has been replaced. Note down the gauge readings and the date the replacement was made.
  2. Reassemble in reverse order.

Note. Make sure that the flap on the underneath of the cover fits into its slot.

  1. YAZAKI: Write in the service and warranty manual that the dashboard has been replaced. Note down the gauge readings and the date the replacement was made.
  2. Reassemble in reverse order.

Note. Make sure that the flap on the underneath of the cover fits into its slot.

Scheme 104

Scheme 104: Dashboard, replacing components.

Scheme 105

Scheme 105

VDO.

Note. Points to note when working on dashboard: Cleanliness: workplace must be free from dust, dirt, oil, solvents etc. • Always wash your hands before taking the dashboard apart. Do not use hand cream or hand lotion after washing. If using gloves, these must be thin cotton cloth. Synthetic materials could lead to a static buildup. • Printed circuit board must not be exposed to static electricity. • Do not touch printed circuit board or instrument scale surfaces. • Do not move needles so they change position. They are calibrated at the factory. Moving them may make instruments read wrongly.

Replacing individual components

If dashboard is not working, this may be because the fuse has blown.

  1. Remove printed circuit board and check fuse on the inside. To replace fuse, see «Replacing fuse»(ref-403964-S08994713372011061000000) .

Electrical faults are very likely to be due to faults in the printed circuit board.

  1. Change the printed circuit board first.
  2. Assemble and connect dashboard.
  3. Test dashboard in DTM (see «DTM 1 - Self-test»(ref-403964-S27427130062011061000000) ).
  4. If fault persists, replace instrument panel.

Scheme 106

Scheme 106: Dismantling instruments
  1. Remove time/temperature/trip computer module which is located in the lower center. Undo the two screws and the connector.

Note. Do not pull on leads: hold connector and pull it out carefully.

Scheme 107

Scheme 107: Replacing Odometer
  1. Remove cover. Undo the 11 screws marked A and the three marked B .

The screws marked B hold the odometer to the baseplate.

Scheme 108

Scheme 108
  1. Lift printed circuit board off of baseplate. The printed circuit board is pressed onto the baseplate and must be removed with care.
  2. Undo odometer connector.
CAUTIONPlace circuit board on anti-static mat.
  1. Lift printed circuit board off of baseplate. The printed circuit board is pressed onto the baseplate and must be removed with care.
  2. Undo odometer connector.
CAUTIONPlace circuit board on anti-static mat.

Scheme 109

Scheme 109: Replacing fuse
  1. Replacing fuse. Fit fuse to outside of printed circuit board. The arrows in the figure show the two holes which act as screwholes for the new fuse.

Use the fuse kit supplied as spare, part no.: 9128110.

If the fuse has blown, this may be because something somewhere else is wrong.

Follow fault-tracing procedures.

Scheme 110

Scheme 110
  1. Remove baseplate from instrument housing. Undo the 9 screws as shown in the figure and the 2 screws in circuit board.

Scheme 111

Scheme 111
  1. Lift off instrument panel.

Note. Do not touch instrument panel or gauges.

Note. If circuit board was not earlier disassembled, carefully coax the instrument plate from baseplate.

Scheme 112

Scheme 112
  1. Remove odometer and reset button.
  2. When replacing odometer, pull it straight out of trip meter.
  1. Remove baseplate from instrument housing. Undo the 9 screws as shown in the figure and the 2 screws in circuit board.
  1. Lift off instrument panel.

Note. Do not touch instrument panel or gauges.

Note. If circuit board was not earlier disassembled, carefully coax the instrument plate from baseplate.

  1. Remove odometer and reset button.
  2. When replacing odometer, pull it straight out of trip meter.
  1. Lift off instrument panel.

Note. Do not touch instrument panel or gauges.

Note. If circuit board was not earlier disassembled, carefully coax the instrument plate from baseplate.

  1. Remove odometer and reset button.
  2. When replacing odometer, pull it straight out of trip meter.
  1. Remove odometer and reset button.
  2. When replacing odometer, pull it straight out of trip meter.

Scheme 113

Scheme 113: Replacing symbol plates
  1. Carefully remove the symbol plates mounted on two plastic pegs on the instrument casing.
  2. Replace and install the new symbol plates.

Install printed circuit board

  1. Connect odometer leads. Connector will only fit one way round.

Scheme 114

Scheme 114
  1. Install printed circuit board by pressing on bulb holders so contact pin goes in
  2. If a new printed circuit board is fitted then the bulbs shall be moved over from the old one.
CAUTIONTo seat circuit board on baseplate, press on cover only, not on circuit board.

Install cover

  1. Fit cover and screw dashboard together with screws A and B as in figure (11 + 3).

Install module

  1. Insert time / temperature / trip computer module, screw it fast with the 2 screws and connect the connector.

Reinstall dashboard in car

  1. After connecting the connectors, fit a new contact protector to the 30-pin connector, part number: 912 8111.
  2. Reinstall panel and other components in reverse order as per «Expose dashboard»(ref-403964-S20102713202011061000000) .

When replacing printed circuit board

  1. Diagnosis: Read off and erase any DTCs and code for market, program in mileage and service interval as per «Diagnostic test mode (DTM) 6 - Data entry»(ref-403964-S17694826262011061000000) .

Scheme 115

Scheme 115: Dashboard, replacing instrument model / symbol panel.

Applies to YAZAKI model.

Note. Points to note when working on dashboard: Cleanliness: workplace must be free of dust, dirt, oil, solvents etc. • Always wash hands before dismantling dashboard. Do not use hand cream or lotion after washing. If using gloves, these must be thin cotton cloth. Synthetic materials can cause static buildup. • Do not touch printed circuit board or gauge surfaces. • Do not touch dials so they change position. They are calibrated at the factory. Moving gauges may cause them to read incorrectly.

Scheme 116

Scheme 116: Dismantling dashboard
  1. Remove time / temperature module center bottom. Undo the two screws and the connector.

Note. Do not pull lead: hold connector and carefully pull straight out.

Scheme 117

Scheme 117
  1. Remove screws from printed circuit board and remove board: 11 screws marked A, 4 marked B and 6 marked C, as per figure.

Scheme 118

Scheme 118
  1. Remove screws from baseplate and lift baseplate off: 9 screws marked D in figure.

Scheme 119

Scheme 119
  1. Remove symbol disk or faulty instrument module.

Scheme 120

Scheme 120
  1. Install new symbol disk or instrument module.

Note. Do not touch instrument panel or gauges.

  1. Install baseplate and screw in position. 9 screws for plastic, marked D in figure.
  1. Install printed circuit board and screw down. Put right screw in right place. 11 screws type A with metric threads. 4 screws type B with plastic threads and pointed ends. 6 screws type C with plastic threads and blunt ends. Do not tighten screws too tight.
  1. Remove screws from printed circuit board and remove board: 11 screws marked A, 4 marked B and 6 marked C, as per figure.
  1. Remove screws from baseplate and lift baseplate off: 9 screws marked D in figure.
  1. Remove symbol disk or faulty instrument module.
  1. Install new symbol disk or instrument module.

Note. Do not touch instrument panel or gauges.

  1. Install baseplate and screw in position. 9 screws for plastic, marked D in figure.
  1. Install printed circuit board and screw down. Put right screw in right place. 11 screws type A with metric threads. 4 screws type B with plastic threads and pointed ends. 6 screws type C with plastic threads and blunt ends. Do not tighten screws too tight.
  1. Remove screws from baseplate and lift baseplate off: 9 screws marked D in figure.
  1. Remove symbol disk or faulty instrument module.
  1. Install new symbol disk or instrument module.

Note. Do not touch instrument panel or gauges.

  1. Install baseplate and screw in position. 9 screws for plastic, marked D in figure.
  1. Install printed circuit board and screw down. Put right screw in right place. 11 screws type A with metric threads. 4 screws type B with plastic threads and pointed ends. 6 screws type C with plastic threads and blunt ends. Do not tighten screws too tight.
  1. Remove symbol disk or faulty instrument module.
  1. Install new symbol disk or instrument module.

Note. Do not touch instrument panel or gauges.

  1. Install baseplate and screw in position. 9 screws for plastic, marked D in figure.
  1. Install printed circuit board and screw down. Put right screw in right place. 11 screws type A with metric threads. 4 screws type B with plastic threads and pointed ends. 6 screws type C with plastic threads and blunt ends. Do not tighten screws too tight.
  1. Install new symbol disk or instrument module.

Note. Do not touch instrument panel or gauges.

  1. Install baseplate and screw in position. 9 screws for plastic, marked D in figure.
  1. Install printed circuit board and screw down. Put right screw in right place. 11 screws type A with metric threads. 4 screws type B with plastic threads and pointed ends. 6 screws type C with plastic threads and blunt ends. Do not tighten screws too tight.
  1. Install baseplate and screw in position. 9 screws for plastic, marked D in figure.
  1. Install printed circuit board and screw down. Put right screw in right place. 11 screws type A with metric threads. 4 screws type B with plastic threads and pointed ends. 6 screws type C with plastic threads and blunt ends. Do not tighten screws too tight.
  1. Install printed circuit board and screw down. Put right screw in right place. 11 screws type A with metric threads. 4 screws type B with plastic threads and pointed ends. 6 screws type C with plastic threads and blunt ends. Do not tighten screws too tight.

Install time / temperature module and screw in place and connect connector.

Scheme 121

Scheme 121: Replace fuse
  1. Replace fuse. Fit fuse on outside of printed circuit board as in figure. Use fuse kit supplied as spare.
  2. Check for open-circuit in fuse with an ohmmeter. Ohmmeter should read infinite resistance. If fuse has blown, this may be due to a short-circuit somewhere else. Follow fault-tracing procedures.
  1. Test dashboard.
  2. Install new contact protector on 30-pin connector (part no.: 9128111).
  3. Reinstall cover panel and other components in reverse order as per «Expose dashboard»(ref-403964-S20102713202011061000000) .