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Volvo Trucks MID 146, Руководство по обслуживанию

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Group 87 Climate Control, Fault Codes

Specifications

Specifications

Climate Unit, Signal Description

Connection between the control unit and cable harness

T8008833

W8003419

1

BSA (15 pin)

2

BSB (21 pin)

Conditions:

•

Breakout box 9998699 connected to adapter 9998596
between the control unit and cable harness.

•

Breakout box 9998699 connected to adapter 9990025
between the control unit and cable harness.

V = direct current voltage (V)

B+ = battery voltage

R = resistance in ohms (

)

Termi-
nal

Signal type

Measurement
points

Nominal value

Other

BSA1

Not connected

BSA2

Not connected

BSA3

Not connected

BSA4

Not connected

BSA5

Sensor cab temperature, signal
voltage

BSA5 - BSB3

V

≈

0 – 5 V

BSA6

Dash Illumination

BSA6 - BSA15

V

≈

5 - 12 V

10 - 90 % of B+

BSA7

BSA8

Fan control, signal voltage

BSA8 - BSA15

V

≈

0 - 10 V

Rotate fan control
knob

3

Содержание MID 146

Страница 1: ...Service Manual Trucks Group 87 Fault Codes Climate Control MID 146 CU BAS CU MCC CU ECC VN VHD VERSION2 PV776 TSP196483 ...

Страница 2: ......

Страница 3: ...t procedure The following levels of observations cautions and warnings are used in this Service Documentation Note Indicates a situation handling or circumstance which should be observed Caution Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury or damage to property Warning Indicates a potentially hazardous situation which if not avoided could ...

Страница 4: ...changer 24 MID 146 SID 13 Temperature Sensor Heat Exchanger Check 25 MID 146 SID 14 Circulation Fan Temperature Sensor Cab 27 MID 146 SID 15 Engine Fan Request 28 MID 146 SID 16 Stepper Motor Phase 1 29 MID 146 SID 16 Stepper Motor Phase 1 Check 30 MID 146 SID 17 Stepper Motor Phase 2 31 MID 146 SID 17 Stepper Motor Phase 2 Check 32 MID 146 SID 18 Stepper Motor Phase 3 33 MID 146 SID 18 Stepper Mo...

Страница 5: ...2 ...

Страница 6: ...ness Breakout box 9998699 connected to adapter 9990025 between the control unit and cable harness V direct current voltage V B battery voltage R resistance in ohms Termi nal Signal type Measurement points Nominal value Other BSA1 Not connected BSA2 Not connected BSA3 Not connected BSA4 Not connected BSA5 Sensor cab temperature signal voltage BSA5 BSB3 V 0 5 V BSA6 Dash Illumination BSA6 BSA15 V 5 ...

Страница 7: ...pressure signal volts BSB6 Ground V 0 5 4 5 V DC BSB7 Stepper motor phase 1 low BSB8 Stepper motor phase 2 low BSB9 Stepper motor phase 3 low BSB10 Stepper motor phase 4 low BSB11 Stepper motor by pass signal voltage BSB11 BSB7 10 V 10 V Stepper motor active Rotate knob BSB12 Stepper Motor Air distribution signal voltage BSB12 BSB7 10 V 10 V Stepper motor active Rotate knob BSB13 Stepper Motor rec...

Страница 8: ... harness Breakout box 9998699 with adapter 9998596 connected to cable harness Control unit disconnected R resistance in ohms Termi nal Signal type Measurement points Nominal value Other BSA1 BSA2 BSA3 BSA4 BSA5 Sensor cab temperature BSA5 BSB3 R 12 5 k 20 C 68 F BSA6 BSA7 BSA8 Fan control BSA8 BSA15 R 100 k BSA9 BSA10 BSA11 BSA12 Magnetic clutch air conditioning A C compressor BSA12 BSA15 R 6 k 5 ...

Страница 9: ...m pressure BSB6 BSB3 R 2 R 6 R 10 R 15 2 bar 9 bar 18 bar 30 bar BSB7 BSB8 BSB9 BSB10 BSB11 BSB12 BSB13 BSB14 BSB15 Engine coolant valve voltage supply BSB15 BSA11 R 50 Fuse F32 removed BSB16 BSB17 BSB18 Sensor system pressure BSB18 BSB3 R 112 k 4 5 bar BSB19 Temperature sensor evaporator BSB19 BSB3 R 3 5 k 20 C 68 F BSB20 Temperature sensor heat exchanger BSB20 BSB3 R 12 5 k 20 C 68 F BSB21 Not c...

Страница 10: ...des Tools Tools Special Equipment For special tools and other special equipment ordering instructions see tool information in group 08 Special tools 9990025 9998534 9998596 AC Adapter 4 pin DIN adapter AC Adapter 9998699 Breakout box 7 ...

Страница 11: ...Group 87 Climate Control Fault Codes Tools Other special equipment 85105675 85104410 J 39200 Overlay used with 9998596 Overlay used with 9990025 Digital Multimeter 8 ...

Страница 12: ...per Motor Air Distribution page 16 MID 146 SID 9 Stepper motor air mixture ECC heat control MCC BAS 4 MID 146 SID 9 Stepper Motor Air Mix page 18 MID 146 SID 11 Magnetic clutch air conditioning A C compressor 4 MID 146 SID 11 Solenoid Clutch Compressor page 20 MID 146 SID 12 Solenoid valve water control 3 MID 146 SID 12 Water Control Valve page 21 MID 146 SID 13 Temperature sensor heat exchanger 3...

Страница 13: ...correct data Intermittent or incorrect data 3 Electrical fault Abnormally high voltage or short circuit to higher voltage 4 Electrical fault Abnormally low voltage or short circuit to lower voltage 5 Electrical fault Abnormally low current or open circuit 6 Electrical fault Abnormally high current or short circuit to ground 7 Mechanical fault Incorrect response from the mechanical system 8 Mechani...

Страница 14: ...sible cause Connector to sensor disconnected Signal cable short circuited to higher voltage Ground lead short circuited to higher voltage Reaction from the control unit Fault code is stored Yellow lamp requested Noticeable external symptoms Yellow lamp lights up The compressor cycles 20 s active 60 s inactive Appropriate check See MID 146 SID 2 Temperature Sensor Evaporator Check page 12 FMI 4 Abn...

Страница 15: ...wiring and connectors see separate service information under Group 371 Measurement at the component connector to the control unit Note If one of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Ground lead 1 Conditions Measuring voltage using the J 39200 Digital Multimeter Ignition key in the drive position Measure...

Страница 16: ...ve Measurement points Nominal value BSB3 BSB19 V 3 64 3 85 V 10 C 14 F V 1 94 2 10 V 20 C 68 F V 1 06 1 18 V 40 C 104 F J 39200 9998699 9990025 Checking component 3 Conditions The component connector disconnected Measuring resistance using a J 39200 Digital Multimeter Measurement to the component Measurement points Nominal value 1 2 R 14 92 15 51 k 10 C 14 F 1 2 R 3 37 3 53 k 20 C 68 F 1 2 R 1 43 ...

Страница 17: ...it to lower voltage Conditions for fault code If the control unit detects a short circuit to ground the control unit interprets this as an error and a fault code is stored Possible cause Signal cable to stepper motor Fresh air Recirculation short circuited to lower voltage Signal cable to stepper motor Fresh air Recirculation short circuited to ground Reaction from the control unit Fault code is s...

Страница 18: ...nt connector to the control unit Note If one of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Signal cable 1 Conditions Control unit connected Measuring voltage using the J 39200 Digital Multimeter Ignition key in the drive position Measurement to the control unit Stepper motor active Measurement points Nominal ...

Страница 19: ...wer voltage Conditions for fault code If the control unit detects a short circuit to ground the control unit interprets this as an error and an fault code is stored Possible cause Signal cable to air distribution stepper motor short circuited to lower voltage Signal cable to air distribution stepper motor short circuited to ground Reaction from the control unit Fault code is stored Yellow lamp req...

Страница 20: ... the control unit Note If one of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Signal cable 1 Conditions Control unit connected Measuring voltage using the J 39200 Digital Multimeter Ignition key in the drive position Measurement to the control unit Control unit connected Stepper motor active Measurement points ...

Страница 21: ...cal engine coolant valve is located in the climate control unit Fault code FMI 4 Abnormally low voltage or short circuit to lower voltage Conditions for fault code If the control unit detects a short circuit to ground the control unit interprets this as an error and an fault code is stored Possible cause Signal cable to air mixture stepper motor short circuited to lower voltage Signal cable to air...

Страница 22: ...to the control unit Note If one of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Signal cable 1 Conditions Control unit connected Measuring voltage using the J 39200 Digital Multimeter Ignition key in the drive position Measurement to the control unit Control unit connected Stepper motor active Measurement point...

Страница 23: ...ic clutch is part of the compressor Fault code FMI 4 Abnormally low voltage or short circuit to lower voltage Conditions for fault code If the control unit detects a short circuit to ground the control unit interprets this as an error and an fault code is stored Possible cause Signal cable short circuited to lower voltage Reaction from the control unit Fault code is stored Yellow lamp requested No...

Страница 24: ...ault code FMI 3 Abnormally high voltage or short circuit to higher voltage Conditions for fault code If the control unit detects a short circuit to voltage the control unit interprets this as an error and a fault code is stored Possible cause Connector to water valve disconnected Signal cable short circuited to higher voltage Ground lead short circuited to higher voltage Reaction from the control ...

Страница 25: ... service information under Group 371 Measurement at the component connector to the control unit Note If one of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Ground lead 1 Conditions Measuring voltage using the J 39200 Digital Multimeter Ignition key in the drive position Measurement to the control unit Control u...

Страница 26: ...ion Measurement to the control unit Control unit connected Measurement points Nominal value BSA11 Ground V B J 39200 9998699 9998596 Checking component 3 Conditions The component connector disconnected Measuring resistance using a J 39200 Digital Multimeter Measurement to the component Ignition key in off position Measurement points Nominal value 1 2 R 12 4 4 J 39200 23 ...

Страница 27: ...higher voltage An ECC control unit was mistakenly installed in place of an MCC control unit Reaction from the control unit Fault code is stored Yellow lamp requested Noticeable external symptoms Yellow lamp lights up Considerably reduced temperature control Appropriate check See MID 146 SID 13 Temperature Sensor Heat Exchanger Check page 25 Check control unit part numbers for correct installation ...

Страница 28: ...ng wiring and connectors see separate service information under Group 371 Measurement at the component connector to the control unit Note If one of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Ground lead 1 Conditions Measuring voltage using the J 39200 Digital Multimeter Ignition key in the drive position Meas...

Страница 29: ...e Measurement points Nominal value BSB3 BSB20 V 4 08 4 36 V 10 C 14 F V 2 64 2 91 V 20 C 68 F V 1 64 1 87 V 40 C 104 F J 39200 9998699 9990025 Checking component 3 Conditions The component connector disconnected Measuring resistance using a J 39200 Digital Multimeter Measurement to the component Measurement points Nominal value 1 2 R 50 13 58 40 k 10 C 14 F 1 2 R 11 82 13 15 k 20 C 68 F 1 2 R 5 07...

Страница 30: ...cab temperature sensor and is located in the center of the dashboard Fault code FMI 4 Abnormally low voltage or short circuit to lower voltage Conditions for fault code If the control unit detects a short circuit to ground the control unit interprets this as an error and a fault code is stored Possible cause Signal cable short circuited to lower voltage Reaction from the control unit Fault code is...

Страница 31: ...e condensor The engine ecu then controls the fan operation for a specified amount of time Fault code FMI 3 Abnormally high voltage or short circuit to higher voltage Conditions for fault code If the control unit detects a short circuit to voltage the control unit interprets this as an error and a fault code is stored Possible cause Signal cable short circuited to higher voltage Reaction from the c...

Страница 32: ...t detects a short circuit to voltage the control unit interprets this as an error and a fault code is stored Possible cause The signal cable to phase 1 short circuited to higher voltage Reaction from the control unit Fault code is stored Yellow lamp requested Noticeable external symptoms Yellow lamp lights up None of the stepper motors for Fresh air Recirculation Air distribution or Air mixture SI...

Страница 33: ...tor to the control unit Note If one of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Signal cable 1 Conditions Control unit connected Measuring voltage using the J 39200 Digital Multimeter Ignition key in the drive position Measurement to the control unit Control unit connected Stepper motor active Measurement p...

Страница 34: ...t detects a short circuit to voltage the control unit interprets this as an error and a fault code is stored Possible cause The signal cable to phase 2 short circuited to higher voltage Reaction from the control unit Fault code is stored Yellow lamp requested Noticeable external symptoms Yellow lamp lights up None of the stepper motors for Fresh air Recirculation Air distribution or Air mixture SI...

Страница 35: ...tor to the control unit Note If one of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Signal cable 1 Conditions Control unit connected Measuring voltage using the J 39200 Digital Multimeter Ignition key in the drive position Measurement to the control unit Control unit connected Stepper motor active Measurement p...

Страница 36: ...t detects a short circuit to voltage the control unit interprets this as an error and a fault code is stored Possible cause The signal cable to phase 3 short circuited to higher voltage Reaction from the control unit Fault code is stored Yellow lamp requested Noticeable external symptoms Yellow lamp lights up None of the stepper motors for Fresh air Recirculation Air distribution or Air mixture SI...

Страница 37: ...tor to the control unit Note If one of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Signal cable 1 Conditions Control unit connected Measuring voltage using the J 39200 Digital Multimeter Ignition key in the drive position Measurement to the control unit Control unit connected Stepper motor active Measurement p...

Страница 38: ...t detects a short circuit to voltage the control unit interprets this as an error and a fault code is stored Possible cause The signal cable to phase 4 short circuited to higher voltage Reaction from the control unit Fault code is stored Yellow lamp requested Noticeable external symptoms Yellow lamp lights up None of the stepper motors for Fresh air Recirculation Air distribution or Air mixture SI...

Страница 39: ...r to the control unit Note If one of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Signal cable 1 Conditions Control unit connected Measuring voltage using the J 39200 Digital Multimeter Ignition key in the drive position Measurement to the control unit Control unit connected Stepper motor active Measurement poi...

Страница 40: ...cuited to higher voltage Ground lead short circuited to higher voltage A blocked expansion valve may cause a high voltage or pressure reading Reaction from the control unit Fault code is stored Yellow lamp requested Noticeable external symptoms Yellow lamp lights up No cooling effect Appropriate check See MID 146 SID 22 Pressure Sensor Refrigerant High Pressure Side Check page 38 FMI 4 Abnormally ...

Страница 41: ...l unit Note If one of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Supply cable 1 Conditions Ignition key in the drive position Measurement to the control unit Control unit connected Measuring voltage using the J 39200 Digital Multimeter Measurement points Nominal value BSB18 BSB3 V 4 5 5 5 V J 39200 9990025 99...

Страница 42: ...Conditions The component connector disconnected Measuring resistance using a J 39200 Digital Multimeter Measurement to the component Measurement points Nominal value 2 4 R 2 2 bar 29 psi 2 4 R 6 9 bar 130 psi 2 4 R 10 18 bar 261 psi 2 4 R 15 30 bar 435 psi J 39200 9998534 39 ...

Страница 43: ...rcuit to ground the control unit interprets this as an error and a fault code is stored Possible cause Signal cable short circuited to higher voltage Ground lead short circuited to higher voltage Reaction from the control unit Fault code is stored Yellow lamp requested Noticeable external symptoms Yellow lamp lights up No air conditioning A C function Only temperature control in the extreme positi...

Страница 44: ...ne of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Supply cable 1 Conditions Measurement to the control unit Refrigerant pressure sensor connector disconnected Ignition key in on position Measuring resistance using a J 39200 Digital Multimeter Measurement points Nominal value 1 ground R 0 J 39200 9998534 Supply...

Страница 45: ...ns for fault code An fault code is stored if information about the vehicle speed is not received on the SAE J1708 data link within 60 seconds An fault code is stored if information about the engine speed is not received on the SAE J1708 data link within 60 seconds An fault code is stored if information about the engine coolant temperature ECT is not received on the SAE J1708 data link within 60 se...

Страница 46: ...her voltage An ECC control unit was mistakenly installed in place of an MCC control unit Reaction from the control unit Fault code is stored Yellow lamp requested Noticeable external symptoms Yellow lamp lights up Considerably reduced temperature control Appropriate check See MID 146 PID 170 Temperature Sensor Cab Check page 44 Check control unit part numbers for correct installation Wrongly insta...

Страница 47: ...ing and connectors see separate service information under Group 371 Measurement at the component connector to the control unit Note If one of the values below is incorrect this may also have caused the component to fail check the component if any of the values are incorrect Signal cable 1 Conditions Measuring voltage using the J 39200 Digital Multimeter Measurement to the control unit Measurement ...

Страница 48: ...mponent connector disconnected Measuring resistance using a J 39200 Digital Multimeter Measurement to the component Measurement points Nominal value 3 4 R 52 75 57 46 k 10 C 14 F 3 4 R 12 09 12 88 k 20 C 68 F 3 4 R 5 14 5 51 k 40 C 104 F 3 ground Open circuit 4 ground Open circuit J 39200 45 ...

Страница 49: ... the control unit detects a voltage higher than 4 9V the control unit interprets this as an error and a fault code is stored Possible cause Signal cable short circuited to higher voltage Ground lead short circuited to higher voltage Faulty sensor Reaction from the control unit Fault code is stored Yellow lamp requested The control unit requests the ambient air temperature from the instrument clust...

Страница 50: ...trol Valve Check 22 8730 21 02 06 MID 146 SID 13 Temperature Sensor Heat Exchanger Check 25 8730 21 02 07 MID 146 SID 16 Stepper Motor Phase 1 Check 30 8730 21 02 08 MID 146 SID 17 Stepper Motor Phase 2 Check 32 8730 21 02 09 MID 146 SID 18 Stepper Motor Phase 3 Check 34 8730 21 02 10 MID 146 SID 19 Stepper Motor Phase 4 Check 36 8730 21 02 11 MID 146 SID 22 Pressure Sensor Refrigerant High Pressu...

Страница 51: ......

Страница 52: ... America Inc P O Box 26115 Greensboro NC 27402 6115 Volvo Trucks Canada Ltd 5600A Cancross Court Mississauga Ontario L5R 3E9 http www volvotrucks volvo com PV776 TSP196483 1000 10 2003 Volvo Trucks North America Inc 2003 ...

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