44 - 57
Test point 44
Drive motor, central locking system
Short to B+
Fault code 45
1. Pull plug II off the alarm system control module.
2. Disconnect plug connection X 11 (driver's side).
3. Disconnect plug connection X 12 (passenger's side).
4. Switch ignition on.
5. Connect voltmeter to plug II pin 9 and ground.
Display: 0 volts
6. Connect voltmeter to plug II pin 3 and ground.
Display: 0 volts
7. Switch off ignition.
8. Ohmmeter at plug X 11 pin S 11 and pin S24 (sleeve side).
Display: 5-7 ohm at 20 °C
9. Ohmmeter at plug X 11 pin S 11 and pin S17 (sleeve side).
Display: 5-7 ohm at 20 °C
Ohmmeter at plug connection X 12 pin 11 and pin 24 (sleeve side).
Display: 5-7 ohm at 20 °C
Test point 45
Central locking system synchronization
Fault code 46, 47
These faults are stored in the memory if at least one safe contact does not reach the safe position after two synchronization actuations towards safe.
1. With PST 2 (drive links), check whether the drive motor reacts with the door closed.
If the drive motors react, select "Driver's side locked" and "Passenger's side locked" in the menu item Input signals, and close the doors
Vehicle not locked
PST2 display Driver's side not locked
Passenger's side not locked
If the display of the PST2 deviates from this information or if the drive motors do not react, a fault is present in the supply lead or in the door lock module (microswitch, drive motor)
Pull plug I off the alarm system control module
Pull plug off door lock (driver's side / passenger's side)
Voltmeter at alarm system control module plug I pin 5 and ground
Voltmeter display: 0 V
Ohmmeter at alarm system control module plug I pin 5 and ground
Ohmmeter display: Infinity ohm
Ohmmeter on alarm system control module plug I pin 5 and plug on driver side door lock pin 7
Ohmmeter display: < 5 ohm
Voltmeter at alarm system control module plug I pin 28 and ground
Voltmeter display: 0 V
Ohmmeter at alarm system control module plug I pin 28 and ground
Ohmmeter display: Infinity ohm
Ohmmeter at alarm system control module plug I pin 28 and plug on
Passenger side door lock pin 7
Ohmmeter display: < 5 ohm
Pull plug off switch for central locking
Voltmeter at alarm system control module plug I pin 29 and ground
Voltmeter display: 0 V
Ohmmeter at alarm system control module plug I pin 29 and ground
Ohmmeter display: Infinity ohm
Ohmmeter at alarm system control module plug I pin 29 and plug on switch for central locking pin 1
Ohmmeter display: < 5 ohm
Voltmeter at alarm system control module plug I pin 30 and ground
Voltmeter display: 0 V
Ohmmeter at alarm system control module plug I pin 30 and ground
Ohmmeter display: Infinity ohm
Ohmmeter at alarm system control module plug I pin 30 and plug on driver side door lock pin 3
Ohmmeter display: < 5 ohm
Voltmeter at alarm system control module plug I pin 32 and ground
Voltmeter display: 0 V
Ohmmeter at alarm system control module plug I pin 32 and ground
Ohmmeter display: Infinity ohm
Ohmmeter at alarm system control module plug I pin 32 and plug on driver/passenger side door lock pin 3
Ohmmeter display: < 5 ohm
If no faults are detected in the wire, replace the door lock.
Test point 46
Signal from airbag detected
Fault code 48
This fault is stored in the memory if the airbag control module transmits a signal to the alarm system control module after the airbag has been triggered. This is a triggering log.
1. Clear fault memory.
Switch ignition off and then on again.
Check whether the fault appears again.
If the fault reappears, pull off plug II on alarm system control module.
Ohmmeter on alarm system control module plug II pin 1 and ground
Ohmmeter display: < 5 ohm
Check the entire system for operation.
Test point 47
K-lead
Fault code 49
This fault is stored in the memory if the K-lead has a short to ground for at least 2 s when the ignition is switched on.
Connect special tools 9616 and 9617 and switch on ignition. Connect ohmmeter to special tool 9616, pin 2 and to ground to check for open circuit.
Test point 48
Radio transmitter code
Fault code 50
This fault is stored in the memory if the radio transmitter is detected as unknown after the button is pressed.
1. Check if the hand-held transmitter is adapted correctly.
2. Check if the second hand-held transmitter is detected by the control module.
3. If the second hand-held transmitter does not perform the function either, replace the control module.
Test point 49
Alarm siren
Fault code 51
This fault is stored in the memory if an internal control module fault is present.
1. Delete fault memory and check whether the fault appears again. If the fault reappears, replace the control module.
2. If the fault does not reappear, switch off the ignition switch it on again and check the function of the system.
Test point 50
Door lock barrel open, actuated for longer than 60 s
Fault code 52
This fault is stored in the following case:
Short circuit to ground in the supply lead between plug I pin 15 on the control module and door lock pin 6.
The control module is faulty
1. Pull plug I off the control module
2. Pull plug off the door lock
3. Measure the resistance between plug I pin 15 and ground
Ohmmeter display: Infinity ohm
Test point 51
EPROM fault
Checksum
Fault code 53
This fault is stored in the following case:
- The control module is faulty Replace control module.
Test point 52
Tilt sensor not in normal position
Fault code 54
This fault is stored in the following cases:
- Additional alarm system (alarm siren with tilt sensor) is not installed correctly
- Additional alarm system (tilt sensor) is faulty
Check installation position and position of the tilt sensor.
Test point 53
No current in tank drive motor despite relay actuation
Fault code 58
This fault is stored in the following cases:
Short circuit to ground or open circuit between plug II on control module pin 5 or 10, and tank cap actuator pin 1 or 2 or faulty shift elements for tank cap.
In the menu item Drive links, select "Tank locking" and carry out the drive link test. If the shift element for the tank cap does not react:
Pull plugs I and II off the alarm system control module
Ohmmeter at alarm system control module plug II pin 1 and ground
Ohmmeter display: < 5 ohm
Pull plug off actuator for tank cap.
Voltmeter at alarm system control module plug II pin 10 and ground
Voltmeter display: 0 V
Voltmeter at alarm system control module plug II pin 5 and ground
Voltmeter display: 0 V
Ohmmeter on alarm system control module plug I pin 10 and plug on shift element for tank cap pin 1
Ohmmeter display: < 5 ohm
Ohmmeter at alarm system control module plug I pin 10 and ground Ohmmeter display: Infinity ohms
Ohmmeter on alarm system control module plug I pin 5 and plug on shift element for tank cap pin 2
Ohmmeter display: < 5 ohm
Ohmmeter at alarm system control module plug I pin 5 and ground
Ohmmeter display: Infinity ohm
If no faults are detected in the wire, replace the shift element for the tank cap.
Test point 54
Central locking end position safe not reached
Fault code 59
This fault is stored in the following cases:
Open circuit in the supply lead to plug II pin 1 (terminal 31)
Short to ground or open circuit in the supply lead to plug II pin 8
Short circuit to voltage/ground or open circuit in the supply lead to plug II pin 9
Short circuit to voltage/ground or open circuit in plug II pin 19
Door lock (driver/passenger) is faulty
Elimination:
In the menu item Drive finks, select "Secure doors" and carry out the function test
In the menu item Input signals, select "Driver's side secured" and "Passenger's side secured" and compare the switch positions with the input signals table.
Pull plugs I and II off the alarm system control module
Ohmmeter on plug II pin 1 and ground
Ohmmeter display: < 5 ohm
Voltmeter at plug II pin 8 and ground
Voltmeter display: Battery voltage
If 0 V is displayed, check fuse C3
Voltmeter at plug II pin 9 and ground
Voltmeter display: 0 V
Ohmmeter on plug II pin 9 ground
Ohmmeter display: Infinity ohm
Ohmmeter on plug II pin 9 and plug on door lock (driver's side/passenger's side) pin 2
Ohmmeter display: < 5 ohm
Voltmeter at plug I pin 19 and ground
Voltmeter display: 0 V
Ohmmeter at plug I pin 19 and ground
Ohmmeter display: Infinity ohm
Test point 55
Central locking end position locked not reached
Fault code 60
This fault is stored in the following cases:
Switch for central locking is faulty
Open circuit in the supply lead to plug II pin 8 (terminal 30)
Short circuit to voltage/ground or open circuit in the supply lead to plug II pin 9
Short circuit to voltage/ground or open circuit in plug I pin 5
Short circuit to voltage/ground or open circuit in plug I pin 28
Short circuit to voltage/ground or open circuit in plug I pin 29
Door lock (driver's side / passenger's side) is faulty
In the menu item Input signals, select "Central locking button", close doors, actuate the switch for central locking and check whether the switch operates.
In the menu item Drive links, select "Lock doors" and carry out the function test.
In the menu item Input signals, select 'Driver's side locked" and "Passenger's side locked" and compare the switch positions with the input signals table.
Pull plugs I and II off the alarm system control module
Pull plug off door lock (driver's side/passenger's side)
Pull plug off Switch for central locking
Voltmeter at plug I pin 29 and ground
Voltmeter display: 0 V
Ohmmeter at alarm system control module plug I pin 29 and ground
Ohmmeter display: Infinity ohm
Ohmmeter on alarm system control module plug I pin 29 and plug on switch for central locking pin 1
Ohmmeter display: < 5 ohm
Voltmeter at plug II pin 8 and ground
Voltmeter display: Battery voltage
If 0 V is displayed, check fuse C3
Voltmeter at plug II pin 9 and ground
Voltmeter display: 0 V
Ohmmeter on alarm system control module plug II pin 9 and ground
Ohmmeter display: Infinity ohm
Ohmmeter on alarm system control module plug II pin 9 and pin 2 of both plugs on door lock (driver's side/passenger's side)
Ohmmeter display: < 5 ohm
Voltmeter at plug I pin 5 and ground
Voltmeter display: 0 V
Ohmmeter at alarm system control module plug I pin 5 and ground
Ohmmeter display: Infinity ohm
Ohmmeter on alarm system control module plug I pin 5, and pin 7 of both plugs on door lock (driver's side/passenger's side)
Ohmmeter display: < 5 ohm
Voltmeter at plug I pin 19 and ground
Voltmeter display: 0 V
Ohmmeter at plug I pin 19 and ground
Ohmmeter display: Infinity ohm
Ohmmeter on plug I pin 19 and door lock (driver's side/passenger's side) pin 9
Ohmmeter display: < 5 ohm
Test point 56
Central locking end position unlocked not reached
Fault code 61
This fault is stored in the following cases:
Short circuit to voltage/ground or open circuit in the supply lead to plug II pin 3
Short circuit to voltage/ground or open circuit in the supply lead to plug I pin 5
Short circuit to voltage/ground or open circuit in the supply lead to plug I pin 28
Short circuit to voltage/ground or open circuit in plug I pin 29
Short-circuit to voltage/ground or open circuit in plug I pin 30
Short-circuit to voltage/ground or open circuit in plug I pin 32
Door lock (driver/passenger) is faulty
Wrong country coding: Check coding
Pull plug I off the alarm system control module
Pull plug off Switch for central locking and switch on ignition
Voltmeter at plug I pin 29 and ground
Voltmeter display: 0 V
Ohmmeter at alarm system control module plug I pin 29 and ground
Ohmmeter display: Infinity ohm
Ohmmeter at alarm system control module plug I pin 29 and plug on
Switch for central locking pin 1
Ohmmeter display: < 5 ohm
Pull plug oft door lock (driver's side/passenger's side)
Voltmeter at plug I pin 5 and ground, ignition on
Voltmeter display: 0 V
Ohmmeter at alarm system control module plug I pin 5 and ground
Ignition off
Ohmmeter display: Infinity ohm
Ohmmeter at alarm system control module plug I pin 5 and pin 7 of both plugs on driver/passenger side door lock
Ohmmeter display: < 5 ohm
Voltmeter at plug I pin 28 and ground, ignition on
Voltmeter display: 0 V
Ohmmeter at alarm system control module plug I pin 28 and ground
Ohmmeter display: Infinity ohm
Ohmmeter at alarm system control module plug I pin 30 and ground
Ohmmeter display: Infinity ohm
Ohmmeter at alarm system control module plug I pin 30 and pin 3 of both plugs on driver's side/passenger side door lock
Ohmmeter display: < 5 ohm
Voltmeter at plug I pin 32 and ground
Voltmeter display: 0 V
Ohmmeter at alarm system control module plug I pin 32 and ground
Ohmmeter display: Infinity ohm
Ohmmeter at alarm system control module plug I pin 32 and pin 3 of both plugs on driver/passenger side door lock
Ohmmeter display: < 5 ohm
Pull plug II off the alarm system control module
Voltmeter at plug II pin 3 and ground
Voltmeter display: 0 V
Ohmmeter at alarm system control module plug II pin 3 and ground
Ohmmeter display: Infinity ohm
Ohmmeter on alarm system control module plug II pin 3 and pin 1 of both plugs on door lock (driver's side/passenger's side)
Ohmmeter display: < 5 ohm
Test point 57
Unknown fault code
Fault code XX
1. Inspect the ground points for corrosion.
2. Clear fault memory.