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Contents Wiring diagrams Section: Twice - 9-3 (9400) All sections

Scope Saab 9-3 I

Twice - 9-3 (9400) 28 illustrations ~1386 words

Scope

The following pages give readings and instructions for measuring voltage levels on control modules.

Scheme 34

Scheme 34: Remember
Scheme 34: Remember
  1. Note the test conditions and use common sense when assessing the test result.
  2. The specified test readings are with the ignition ON, unless otherwise stated.
  3. First check that the control module has a power supply and is grounded.
  4. Then check all sensor inputs and signals from other systems.
  5. Finally, check the control module outputs. Remember that the test readings do not indicate whether the actuator is working.
  6. If any reading is not OK, consult the wiring diagram to trace the leads, connectors or components which should be checked more thoroughly.
  7. The specified test readings refer to those obtained with a calibrated Fluke 88/97.
  8. Test readings in % (+) and ms (+) show the pulse ratio and pulse duration of the signal. A test instrument capable of giving pulse ratio and pulse duration readings must be used. The (+) sign indicates a positive trigger pulse, TRIG+. (Scheme 34): Checking All Sensor Inputs And Signals From Other Systems

Identifying Control Module Connection. Scheme 35

Scheme 35: Identifying Control Module Connection
Scheme 35: Identifying Control Module Connection

=greater than; < = less than; ~ = alternating current (LP: LOGIC PROBE P = select pulse; p = visible pulses)

Pin No.Cable colorComponent/functionIn/OutTest conditionsAcrossTest reading
1YE/WHRight brake light, power supply from TWICE to bulb.OutBrake pedal pressed.1-BB+
2GYCentral locking system motor for luggage compartment lock, relay.OutNot operated2-BB+
Activate function with diagnostic tool.B+-2B+
3BU/YEElectrically adjustable passenger seat, relay ground.OutIgnition ON3-BApprox. 1V
Ignition OFF. Front doors closed. Not operated3-BB+
4BNStarting relayOutIgnition key in position ST. Transponder not OK.4-BB+
Ignition key in position ST. Transponder OK.4-B<0.5V
5BN/WHSeat sensor, passenger seat.InPassenger seat occupied.5-21<4.2V
Passenger seat unoccupied.5-215V
6YE/GYLocking switch for central locking, center console.InIgnition ON6-BB+ for approx. 0.5 sec.
7YE/BNUnlocking switch for central locking, center console.InIgnition ON7-BB+ for approx. 0.5 sec.
8BU/BNUnlocking with key in passenger door.InIgnition ONB+-8B+ for approx. 0.5 sec.
9BNHeated rear seat, request.InIgnition ON: Heated seat button held down.9-BB+
10RDGlass breakage sensor and tilt sensor, power supply.OutSensor not disconnected. Anti-theft alarm armed.10-BB+
11RD/WHSwitch for unlocking tailgate/boot lid.InIgnition ON11-BB+ for approx. 0.5 sec.
12BK/GNDoor switch, left rear door.InIgnition ON: Door closed.12-BB+ for approx. 0.5 sec.
13BKAntenna for remote control, groundInAlwaysB+-13B+
13-B<0.5V
14BNAntenna for remote control, signal.InRemote control not operated.14-BB+
Press lock button.14-BApprox. 6V for approx. 0.2 sec.
15WHI-bus (-)In/OutIgnition ON: Bus active15-B2-3V
16YE/GYIgnition +15, logic.InIgnition ON16-BB+
173D/5D: BN/RD CONV: RD/BNIgnition +B, logicInIgnition ON: Key in ignition switch17-BB+
18LHD: BU/RD LHD/ CONV: RD/BK RHD: RD/BKSeat belt switch, driver's side.InIgnition ON: Seat belt on driver's side not buckled18-B<0.5V
Seat belt buckled18-BB+
19BU/RDTilt sensor signal.InIgnition ON19-B1.0V
20VT/WHCentral locking motors rear doors, operating current for theft security lockingOutNot operatedB+-20B+
Lock the car. Then activate function with diagnostic tool.20-BB+
B+-20<1V
21BN/OGSeat sensor passenger seat, ground.OutIgnition ONB+-21B+
22OGCentral locking motors doors, operating current for lockingOutNot operatedB+-22B+
Car must be unlocked. Then activate function with diagnostic tool.22-BB+
B+-22<1V
23BU/WHParking light left rear, power supply from switch.InLight switch in position for parking light (pos 1).23-BB+
24YE/GNHigh-level brake light, power supply from TWICE to bulb.OutBrake pedal pressed.24-BB+
25BU/OGLeft brake light, power supply from TWICE to bulb.OutBrake pedal pressed.25-BB+
26BU/YECentral locking motor driver's door, operating current for unlockOutNot operatedB+-26B+
Car must be unlocked. Then activate function with diagnostic tool.26-BB+
B+-26<1V
27GY/WHLED, theft security.OutActivate function with diagnostic toolB+-27Approx. 1.95 V
28RD/WHSeat belt warning lamp, ground.OutIgnition ON28-B<1 V for 6 sec
Seat belt buckled more than 6 seconds since ignition ON.28-BB+
29YESiren, communicationOutIgnition ON29-BB+
30No connection
31No connection
32RD/VTLocking with key in passenger door.InIgnition ONB+-32B+ for approx. 0.5 sec.
33BU/BNUnlock with key in driver's door.InIgnition ONB+-33B+ for 0.5 sec.
34BKTilt sensor, groundInAlwaysB+-34B+
34-B<0.5V
35BKLuggage compartment switchInIgnition ON: Tailgate closed.35-BB+ for approx. 0.5 sec.
Tailgate open.35-B<0.1V
36BK/GNDoor switch; right rear door.InIgnition ON: Door closed.36-BB+ for approx. 0.5 sec.
Door open.36-B<0.1V
37BKSignal groundInAlwaysB+-37B+
37-B<0.5V
38GNI-bus (+)In/OutIgnition ON: Bus active38-B2-3V
39OG/BKImmobilizer; code from antenna unit by the ignition lock.InIgnition ON39-BB+
Ignition OFF.B+-39<0.1V
40No connection
41RD/WHBonnet switchInIgnition ON: Bonnet closed.41-BB+ for approx. 0.5 sec.
Bonnet open.41-B<0.1V
42VTCentral locking motor driver's side, operating current for theft prevention locking. Car must be locked.OutNot operatedB+-42B+
Activate function with diagnostic tool42-BB+
B+-42<1V
43RDTWICE, power supply +30.InAlways +3043-BB+
B+-43<0.5V
44VT/WHCentral locking system motor luggage compartment, operating current for theft security locking. Car must be locked.OutNot operatedB+-44B+
Activate function with diagnostic tool44-BB+
B+-44<1V
45GN/YEParking light left rear, power supply from TWICE to bulb.OutLight switch in position for parking light (pos 1).45-BB+
46GN/WHParking light right rear, power supply from TWICE to bulb.InLight switch in position for parking light (pos 1).46-BB+
47RDCentral locking system, power supply from fuse.InAlways +30.47-BB+
Activate any central locking function.B+-47<1V
48VTBrake light, power supply from brake light switch.InBrake pedal pressed.48-BB+
49BU/YECentral locking motors rear doors, operating current for unlocking.OutNot operatedB+-49B+
Activate function with diagnostic tool49- groundB+
B+-49<1V
50BKAntenna unit for immobilizer; power supply.OutIgnition ON: Without transponder50-BB+ for approx. 10 sec.
Ignition ON: With transponder50-BB+ for approx. 0.1 sec.
51YELuggage compartment opening, relay.OutNot operated51-BB+
Activate function with diagnostic tool.B+-51< 0.5V
52BU/RDHeated rear seat, relay.OutActivate with diagnostic tool.52-BApprox. 1V
Not operated52-BB+
53No connection
54No connection
55BU/WHLocking button, driver's door.InIgnition ON: Locking button up.55-B0V
Locking button down.55-BB+ for approx. 0.5 sec.
56RD/VTLocking with key in driver's door.InIgnition ON56-B8V for approx. 0.5 sec.
Key in door lock in locked position.56-B0V
57WH/BKGlass breakage sensor, groundInAlwaysB+-57B+
57-B<0.5V
58GN/GYGlass breakage sensor, signalInIgnition ON58-BB+ for approx. 0.5 sec.
59BU/WHTailgate switch for disarming anti-theft alarm. InIgnition ON: Not operated59-BB+ for approx. 0.5Sec.
Turn the key to the unlocked position.59-B<0.1V
60BK/GNDoor switch passenger door, frontInIgnition ON: Door closed.60-BB+ for approx. 0.5 sec.
Door open60-B<0.1V
61GY/GNDoor switch, driver's door.InIgnition ON: Door closed.61-BB+ for approx. 0.5 sec.
Door open61-B<0.1V
62BKCentral locking system motor, luggage compartment, groundOutNot operatedB+-62B+
63No connection
64No connection
65LHD: RD/BK RHD: BU/RD CONV: GY/WHSeat belt switch, passenger sideInIgnition ON: Seat belt on passenger side not buckled.65-B<0.5V
Belt buckled65-BB+
66VTCentral locking motor passenger side front, operating current for theft prevention lockingOutNot operated Lock the car. Activate function with diagnostic toolB+-66 66-BB+ B+
B+-66<1V
67BU/YECentral locking system motor, luggage compartment, operating currentOutNot operated Activate function with diagnostic toolB+-67 67-BB+ B+
B+-67<1V
68BN/GNParking light right rear, power supply from TWICE to bulb.OutLight switch in position for parking light (pos 1).68-BB+
69BU/YECentral locking motor passenger door front, operating current for unlockingOutNot operatedB+-69B+
Activate function with diagnostic tool69-BB+
B+-69<1V
70BKPower ground TWICEInAlwaysB+-70B+
Operate central locking function70-B<0.3V

LOCATION AND COMPONENTS CONNECTION

Identifying Special Tools. Scheme 36

Scheme 36: Identifying Special Tools
Scheme 36: Identifying Special Tools

See service manual 1:4 Tech2

Group: Test equipment

9000900- M93900/9-39-59-3 (9440)
XXXXX

GROUP USED

Identifying 86 11 170 Test Cable, 70-Pin. Scheme 37

Scheme 37: Identifying 86 11 170 Test Cable, 70-Pin
Scheme 37: Identifying 86 11 170 Test Cable, 70-Pin

Trionic, DICE and TWICE

Group: Test equipment

9000900- M93900/9-39-5
M93XX

GROUP USED

Identifying 86 11 345 Jumper Cable (X 2). Scheme 38

Scheme 38: Identifying 86 11 345 Jumper Cable (X 2)
Scheme 38: Identifying 86 11 345 Jumper Cable (X 2)

Group: Test equipment

9000900- M93900/9-39-5
XXXX

GROUP USED

Identifying 86 11 352 Measurement Cable, Male Pin (X 4). Scheme 39

Scheme 39: Identifying 86 11 352 Measurement Cable, Male Pin (X 4)
Scheme 39: Identifying 86 11 352 Measurement Cable, Male Pin (X 4)

Group: Test equipment

9000900- M93900/9-39-5
XXXX

GROUP USED

Identifying 86 11 410 Measurement Cable, Female Pin (X 4). Scheme 40

Scheme 40: Identifying 86 11 410 Measurement Cable, Female Pin (X 4)
Scheme 40: Identifying 86 11 410 Measurement Cable, Female Pin (X 4)

Group: Test equipment

9000900- M93900/9-39-5
XXXX

GROUP USED

Identifying 86 11 857 Test Lamp, Red-Green. Scheme 41

Scheme 41: Identifying 86 11 857 Test Lamp, Red-Green
Scheme 41: Identifying 86 11 857 Test Lamp, Red-Green

Voltage range 8-16V

Group: Test equipment

9000900- M93900/9-39-59-3 (9440)
XXXXX

GROUP USED

Identifying System Overview, Twice. Scheme 42

Scheme 42: Identifying System Overview, Twice
Scheme 42: Identifying System Overview, Twice
  1. Twice control module. See CONTROL MODULE
  2. Lamp check. See SYSTEM OVERVIEW, LAMP CHECK and MAIN COMPONENTS, LAMP CHECK
  3. Seat belt warning. See SYSTEM OVERVIEW, SEAT BELT WARNING and MAIN COMPONENTS, SEAT BELT WARNING
  4. Heated rear seat. See SYSTEM OVERVIEW, HEATED REAR SEAT and MAIN COMPONENTS, HEATED REAR SEAT
  5. Electrically adjustable passenger seat. See SYSTEM OVERVIEW, ELECTRICALLY ADJUSTABLE FRONT PASSENGER SEAT and MAIN COMPONENTS, ELECTRICALLY ADJUSTABLE FRONT PASSENGER SEAT
  6. Central locking, doors. See SYSTEM OVERVIEW, CENTRAL LOCKING SYSTEM, DOORS and MAIN COMPONENTS, CENTRAL LOCKING SYSTEM, DOORS
  7. Electronic luggage compartment opening. See SYSTEM OVERVIEW, ELECTRIC LUGGAGE COMPARTMENT OPENING and MAIN COMPONENTS, ELECTRIC LUGGAGE COMPARTMENT OPENING
  8. Immobilizer SYSTEM OVERVIEW, IMMOBILIZER, PETROL ENGINE (NOT OBD II) SYSTEM OVERVIEW, IMMOBILIZER, PETROL ENGINE, TRIONIC T7 (NOT OBD II) SYSTEM OVERVIEW, STARTER MOTOR INTERLOCK, PETROL ENGINE (OBD II) MAIN COMPONENTS, IMMOBILIZER For further information, see IMMOBILIZATION
  9. ANTI-THEFT ALARM . See SYSTEM OVERVIEW, ANTI-THEFT ALARM and MAIN COMPONENTS, ANTI-THEFT ALARM

Identifying System Overview, Lamp Check. Scheme 43

Scheme 43: Identifying System Overview, Lamp Check
Scheme 43: Identifying System Overview, Lamp Check
  1. Control module, TWICE (632)
  2. Lamps, rear parking lights (13RL, 13RR)
  3. Lamps, brake lights (30RL, 30RR, 30RC)
  4. Switch, brake lights (29)
  5. Switch, lights (10)
  6. SID (541)

Identifying Main Components, Lamp Check. Scheme 44

Scheme 44: Identifying Main Components, Lamp Check
Scheme 44: Identifying Main Components, Lamp Check
  1. Control module, TWICE (632)
  2. Switch, lights (10)
  3. Lamps, rear parking lights (13RL, 13RR)
  4. Switch, brake lights (29)
  5. Lamps, brake lights (30RL, 30RR, 30RC)

Identifying System Overview, Seat Belt Warning. Scheme 45

Scheme 45: Identifying System Overview, Seat Belt Warning
Scheme 45: Identifying System Overview, Seat Belt Warning
  1. Control module, TWICE (632)
  2. Seat belt switch, driver (70D)
  3. Seat belt switch, front-seat passenger (70P)
  4. Sensor for occupied seat cushion, front passenger (614P)
  5. Warning lamp, seat belt (72)
  6. SID (541)

Identifying Main Components, Seat Belt Warning. Scheme 46

Scheme 46: Identifying Main Components, Seat Belt Warning
Scheme 46: Identifying Main Components, Seat Belt Warning
  1. Control module, TWICE (632)
  2. Seat belt switch, driver (70D)
  3. Seat belt switch, front-seat passenger (70P)
  4. Sensor for occupied seat cushion, front passenger (614P)
  5. Warning lamp, seat belt (72)

Identifying System Overview, Heated Rear Seat. Scheme 47

Scheme 47: Identifying System Overview, Heated Rear Seat
Scheme 47: Identifying System Overview, Heated Rear Seat
  1. Control module, TWICE (632)
  2. Switch, heated rear seat (252R)
  3. Relay, heated rear seat (511)
  4. Heating pads, rear seat (64RL, 64RR)
  5. Control module, DICE (628)
  6. SID (541)
  7. Temperature sensor, outside air (286)

Identifying Main Components, Heated Rear Seat. Scheme 48

Scheme 48: Identifying Main Components, Heated Rear Seat
Scheme 48: Identifying Main Components, Heated Rear Seat
  1. Control module, TWICE (632)
  2. Switch, heated rear seat (252R)
  3. Relay, heated rear seat (511)
  4. Heating pad, rear seat left (64RL)
  5. Heating pad, rear seat right (64RR)

Identifying System Overview, Electrically Adjustable Front Passenger Seat. Scheme 49

Scheme 49: Identifying System Overview, Electrically Adjustable Front Passenger Seat
Scheme 49: Identifying System Overview, Electrically Adjustable Front Passenger Seat
  1. Control module, TWICE (632)
  2. Relay, electrically adjustable seat, passenger (446P)
  3. Switch, electrically adjustable seat, passenger (357P)
  4. Door switch, front left (54D)
  5. Door switch, front right (54P)
  6. Ignition switch (20)

Identifying Main Components, Electrically Adjustable Front Passenger Seat. Scheme 50

Scheme 50: Identifying Main Components, Electrically Adjustable Front Passenger Seat
Scheme 50: Identifying Main Components, Electrically Adjustable Front Passenger Seat
  1. Control module, TWICE (632)
  2. Relay, electrically adjustable seat, passenger (446P)
  3. Door switch, front left (54D)
  4. Door switch, front right (54P)

Identifying System Overview, Central Locking System, Doors. Scheme 51

Scheme 51: Identifying System Overview, Central Locking System, Doors
Scheme 51: Identifying System Overview, Central Locking System, Doors
  1. Control module, TWICE (632)
  2. Car key
  3. Remote control
  4. Antenna, remote control, central locking system (456)
  5. Switch, simultaneous closure central locking system (514a)
  6. Motor, central locking system, doors (184D, 184P, 184RL, 184RR)
  7. SID (541)
  8. Antenna unit, immobilizer (463)
  9. Door switches (54)
  10. Microswitch, central locking system, driver's door (274)
  11. Microswitch, central locking system, passenger door (435)
  12. Solenoid, central locking system, filler cap (434a)

Identifying Main Components, Central Locking System, Doors. Scheme 52

Scheme 52: Identifying Main Components, Central Locking System, Doors
Scheme 52: Identifying Main Components, Central Locking System, Doors
  1. Control module, TWICE (632)
  2. Car key, remote control
  3. Antenna, remote control, central locking system (456)
  4. Switch, simultaneous closure central locking system (514a)
  5. Motor, central locking system, driver (184D)
  6. Motor, central locking system, passenger (184P)
  7. Motor, central locking system, rear left (184RL)
  8. Motor, central locking system, rear right (184RR)
  9. Antenna unit, immobilizer (463)
  10. Door switches (54D, 54P, 54RL, 54RR)
  11. Microswitch, central locking system, driver's door (274)
  12. Microswitch, central locking system, passenger door (435)
  13. Solenoid, central locking system, filler cap (434a)

Identifying System Overview, Electric Luggage Compartment Opening. Scheme 53

Scheme 53: Identifying System Overview, Electric Luggage Compartment Opening
Scheme 53: Identifying System Overview, Electric Luggage Compartment Opening
  1. Control module, TWICE (632)
  2. Car key
  3. Remote control
  4. Antenna, remote control, central locking system (456)
  5. Switch, luggage compartment (388)
  6. Motor, central locking system, luggage compartment (184H)
  7. Relay, central locking system, luggage compartment (493) (Not present on Convertibles)

Identifying Main Components, Electric Luggage Compartment Opening. Scheme 54

Scheme 54: Identifying Main Components, Electric Luggage Compartment Opening
Scheme 54: Identifying Main Components, Electric Luggage Compartment Opening
  1. Control module, TWICE (632)
  2. Car key, remote control
  3. Antenna, remote control, central locking system (456)
  4. Switch, luggage compartment (388)
  5. Motor, central locking system, luggage compartment (184H)
  6. Relay, central locking system, luggage compartment (493)

Identifying System Overview, Immobilizer, Petrol Engine (Not OBD II). Scheme 55

Scheme 55: Identifying System Overview, Immobilizer, Petrol Engine (Not OBD II)
Scheme 55: Identifying System Overview, Immobilizer, Petrol Engine (Not OBD II)
  1. Control module, TWICE (632)
  2. Car key
  3. Remote control
  4. Antenna unit, immobilizer (463)
  5. Antenna, remote control, central locking system (456)
  6. LED, anti-theft alarm (305)
  7. Main instrument unit (540)
  8. Engine management system, petrol (430a), (505), (589a)
  9. Injectors (206)
  10. Relay, starter relay (517)
  11. Starter motor (4)

Identifying System Overview, Immobilizer, Petrol Engine, Trionic T7 (Not OBD II). Scheme 56

Scheme 56: Identifying System Overview, Immobilizer, Petrol Engine, Trionic T7 (Not OBD II)
Scheme 56: Identifying System Overview, Immobilizer, Petrol Engine, Trionic T7 (Not OBD II)
  1. Control module, TWICE (632)
  2. Car key
  3. Remote control
  4. Antenna unit, immobilizer (463)
  5. Antenna, remote control, central locking system (456)
  6. LED, anti-theft alarm (305)
  7. Main instrument unit (540)
  8. Engine management system, petrol (Trionic T7)
  9. Injectors (206)
  10. Relay, starter relay (517)
  11. Starter motor (4)

Identifying System Overview, Immobilizer, Diesel Engine. Scheme 57

Scheme 57: Identifying System Overview, Immobilizer, Diesel Engine
Scheme 57: Identifying System Overview, Immobilizer, Diesel Engine
  1. Control module, TWICE (632)
  2. Car key
  3. Remote control
  4. Antenna unit, immobilizer (463)
  5. Antenna, remote control, central locking system (456)
  6. LED, anti-theft alarm (305)
  7. Main instrument unit (540)
  8. Engine management system, diesel (595)
  9. Diesel pump (598)
  10. Relay, starter relay (517)
  11. Starter motor (4)

Identifying System Overview, Starter Motor Interlock, Petrol Engine (OBD II). Scheme 58

Scheme 58: Identifying System Overview, Starter Motor Interlock, Petrol Engine (OBD II)
Scheme 58: Identifying System Overview, Starter Motor Interlock, Petrol Engine (OBD II)
  1. Control module, TWICE (632)
  2. Car key
  3. Remote control
  4. Antenna unit, immobilizer (463)
  5. Antenna, remote control, central locking system (456)
  6. LED, anti-theft alarm (305)
  7. Relay, starter relay (517)
  8. Starter motor (4)

Identifying Main Components, Immobilizer. Scheme 59

Scheme 59: Identifying Main Components, Immobilizer
Scheme 59: Identifying Main Components, Immobilizer
  1. Control module, TWICE (632)
  2. Car key Remote control
  3. Antenna unit, immobilizer (463)
  4. Relay, starter relay (517)
  5. Antenna, remote control, central locking system (456)
  6. Engine management system, petrol (430a), (505), (589a), (430b)
  7. Main instrument unit (540)
  8. Engine management system, diesel (595)
  9. Diesel pump (598)

Identifying System Overview, Anti-Theft Alarm. Scheme 60

Scheme 60: Identifying System Overview, Anti-Theft Alarm
Scheme 60: Identifying System Overview, Anti-Theft Alarm
  1. Control module, TWICE (632)
  2. Car key
  3. Remote control
  4. Antenna, remote control, central locking system (456)
  5. Door switches (54D, P, RL, RR)
  6. Switch, luggage compartment illumination (56)
  7. Bonnet switch, anti-theft alarm (276)
  8. Glass breakage sensor (451)
  9. Tilt sensor (457)
  10. Microswitch, driver's door (274)
  11. Microswitch, passenger door (435)
  12. Microswitch, luggage compartment lock (622)
  13. Antenna unit, immobilizer (463)
  14. LED, anti-theft alarm (305)
  15. Siren, anti-theft alarm (275)
  16. Lamps, direction indicators (27)
  17. Control module, DICE (628)
  18. SID (541)

Identifying Main Components, Anti-Theft Alarm. Scheme 61

Scheme 61: Identifying Main Components, Anti-Theft Alarm
Scheme 61: Identifying Main Components, Anti-Theft Alarm
  1. Control module, TWICE (632)
  2. Car key Remote control
  3. Antenna, remote control, central locking system (456)
  4. Door switches (54D, P, RL, RR)
  5. Switch, luggage compartment illumination (56)
  6. Bonnet switch, anti-theft alarm (276)
  7. Glass breakage sensor (451)
  8. Tilt sensor (457)
  9. Microswitch, driver's door (274)
  10. Microswitch, passenger door (435)
  11. Microswitch, luggage compartment lock (622)
  12. LED, anti-theft alarm (305)
  13. Antenna unit, immobilizer (463)
  14. Siren, anti-theft alarm (275)