Checking the Locking to the Deadlock Position BLL

Checking the locking to the deadlock position BLL

Selecting the door

Note! Trouble-shooting indicates that locking/unlocking using central locking is working normally.

Which door has the problem?
1. Front door
2. Rear door.

Choose the correct option from above.

1 - Checking the front door

2 - Checking the rear door

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Checking the front door
Check the control unit connector B1 and lock unit connector 6 for contact resistance and oxidation as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault and check the intermediate wire for an open circuit as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Is there a fault?

Yes - FAULT FOUND

No - Checking the components

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Checking the rear door
Which door has the problem?
1. One rear door
2. Both rear doors.

Choose the correct option from above.

1 - Circuit test

2 - Circuit test

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Circuit test
The fault is caused by an open circuit in the wire to (or in) the lock unit. To find out which circuit contains the fault:
Remove the relay for locking to the deadlock position (2/115).
Remove lock unit connector and check for contact resistance and oxidation as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Additional information
- To access the relay/fuse box in the boot, see Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing Integrated Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing
- To access the lock unit, see Replacing the switch for the lock unit / cargo compartment lighting Replacing the Switch for the Lock Unit / Cargo Compartment Lighting.

Is there a fault?

Yes - FAULT FOUND

No - continued

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Circuit test, continued
Check the wire between 8 in the cable connector and 3 in the relay socket for an open circuit as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault. If a fault is detected, check in particular the intermediate connector in the cable harness (2) for contact resistance and oxidation as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Additional information
- To access the relay/fuse box in the boot, see Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing Integrated Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing
- To access the lock unit, see Replacing the switch for the lock unit / cargo compartment lighting Replacing the Switch for the Lock Unit / Cargo Compartment Lighting.

Is there a fault?

Yes - FAULT FOUND

No - Checking the components

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Circuit test
The fault is caused by an open circuit in the common relay circuit (relay 2/115 or power supply to relay).
Start by replacing the relay for locking to the deadlock position (2/115) in the boot relay/fuse box. At the same time check relay socket contacts for contact resistance and oxidation as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Additional information
- To access the relay/fuse box in the boot, see Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing Integrated Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing.

Is there a fault?

Yes - FAULT FOUND

No - Checking the relay supply

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Checking the components
Check the resistance between pin 8 and 6 in the lock unit chassis contact.
The ohmmeter should display approximately 5 ohm.

Additional information
- To remove the lock unit, see Replacing the switch for the lock unit / cargo compartment lighting Replacing the Switch for the Lock Unit / Cargo Compartment Lighting
- For information on signals, see Signal specification Signal Specification.

Is the value correct?

Yes - Function test

No - Replacing the component

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Function test
Check that the lock unit mechanical/electrical function is ok before re-installing the lock unit.

Is function OK?

Yes - Replacing the component

No - Replacing the component

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Replacing the component
Replace control unit as described in Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing Integrated Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing.

Continue - FAULT FOUND

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Replacing the component
Replace lock unit as described in Replacing the switch for the lock unit / cargo compartment lighting Replacing the Switch for the Lock Unit / Cargo Compartment Lighting.

Continue - FAULT FOUND

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Checking the relay supply
- Remove the relay for locking to the deadlock position (2/115).
- Measure the voltage between 5 in the relay socket and ground.
The voltmeter should display battery voltage.

Hint: If the value is OK but the fault still remains, link between 3 and 5 in the relay socket to "force-feed" the lock motor while continuing to test.

Additional information
- To access the relay/fuse box in the boot, see Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing Integrated Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing.

Is the value correct?

Yes - FAULT FOUND

No - Checking the fuse

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Checking the fuse
Remove the fuse 11D/8 in boot fuse box.
Check whether fuse 11D/8 is intact and check for contact resistance and oxidation as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Additional information
- To access the relay/fuse box in the boot, see Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing Integrated Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing.

Is the fuse intact?

Yes - Open circuit check

No - Short circuit check

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Open circuit check
Remove relay 2/115 in boot relay/fuse box.
Trouble-shoot the wire between fuse holder secondary side (left) and 5 in the relay socket for an open circuit as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Additional information
- To access the relay/fuse box in the boot, see Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing Integrated Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing.

Continue - FAULT FOUND

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Short circuit check
Check the resistance between the fuse holder secondary side (left) and ground.
The ohmmeter should display an open circuit.
If the value is correct, replace the fuse (NB! In this case the fault may be intermittent).
If the ohmmeter indicates a fault (short circuit), trouble-shoot all the relay circuits involved for a short circuit to ground as described in Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Hint: The relay circuits involved belong to relays 2/111, 2/112, 2/113, 2/114, 2/115, 2/56, 2/59 and 2/67.

Remove one relay at a time and check the resistance to ground from 5 and 3 on the relay socket to find out which circuit the fault is in.

Additional information
- To access the relay/fuse box in the boot, see Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing Integrated Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing.

Continue - FAULT FOUND

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