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Connect the door release cable correctly. If the cable is
damaged, install a new door release cable. Test the system
for normal operation A2: CHECK THE EXTERIOR DOOR HANDLE RELEASE CONNECTION TO THE DOOR LATCH 1 Confirm the exterior door handle release connection to the door latch is installed correctly Is the exterior door handle release cable installed correctly?
Yes
GO to Pinpoint Test C. No
Connect the door release cable correctly. If the cable is
damaged, install a new door release cable. Test the system
for normal operation
PINPOINT TEST B : SINGLE DOOR WILL NOT OPEN FROM THE INSIDE (BUT OPENS FROM THE OUTSIDE) TEST CONDITIONS DETAILS/RESULTS/ACTIONS B1: CHECK THE INTERIOR DOOR RELEASE CABLE TO INTERIOR DOOR HANDLE IS INSTALLED CORRECTLY
NOTE: Figure A - Child lock off position shown 1 Make sure the child lock is disengaged (rear door only)
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Remove the door trim panel as necessary 3 Confirm the interior door release cable is correctly installed to the interior door handle Is the cable correctly installed?
Yes
GO to B2. No
Connect the door release cable correctly. If the cable is
damaged, install a new door release cable. Test the system
for normal operation B2: CHECK THE INTERIOR DOOR HANDLE RELEASE CONNECTION TO THE DOOR LATCH
1 Confirm the interior door handle release connection to the door latch is installed correctly Is the interior door handle release cable installed correctly?
Yes
GO to Pinpoint Test C. No
Connect the door release cable correctly. If the cable is
damaged, install a new door release cable. Test the system
for normal operation
PINPOINT TEST C : DOOR LATCHING AND LOCKING FUNCTION TEST TEST CONDITIONS DETAILS/RESULTS/ACTIONS C1: HARNESS CONNECTION
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NOTE: Test as a single component to ensure that the door latch is not replaced unnecessarily, when another component
may be at fault 1 Remove the door trim panel as necessary
2 Disconnect harness from latch, check for corrosion or damage to both connectors at socket points and pins. Re-connect harness
ensuring robust assembly when all parts confirmed to be in
good order. If harness or latch connectors are damaged, install
new harness/latch as necessary. Test the system for normal
operation Check for normal operation, does latch function correctly? Yes
Re-assemble door trim and test for normal operation
No
GO to C2. C2: LOCK COMMAND SIGNAL FROM VEHICLE HARNESS
1 Close all vehicle doors apart from door being investigated, please note which door, left side or right side is under
investigation 2 Disconnect harness from latch to enable access to socket points to carry-out conductivity testing as detailed 3 Monitor the circuit for momentary power when locking the vehicle via the key-fob or smart key between terminals 5 and 7
left side or 5 and 7 right side Is there momentary power (for approx 8 seconds) between
terminals 5 and 7 left side or 5 and 7 right side when locking the
vehicle via the key-fob or smart key Yes
The vehicle electrical system is locking correctly, providing the
signal to the latch GO to C3. No
Refer to the electrical circuit diagrams and investigate why
vehicle electrical system is not providing signals to the latch.
Using the manufacturer approved diagnostic system check for logged DTCs to localize the fault C3: UNLOCK COMMAND SIGNAL FROM VEHICLE HARNESS 1 Monitor the circuit for momentary power when unlocking the vehicle via the key-fob or smart key between terminals 5 and 7
left side or 5 and 7 right side www.JagDocs.com
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Is there momentary power (for approx 8 seconds) between
terminals 5 and 7 left side and 5 and 7 right side when unlocking
the vehicle via the key-fob or smart key? Yes
The vehicle electrical system is unlocking correctly, providing
the signal to the latch GO to C4. No
Refer to the electrical circuit diagrams and investigate why
vehicle electrical system is not providing signals to the latch.
Using the manufacturer approved diagnostic system check for
logged DTCs to localize the fault C4: PHYSICAL TEST 1 1 Remove latch module from door 2 Inspect latch module for any visual damage 3 With the latch in hand, connect the electrical connector(s) to connect door latch to door harness
NOTE: THE LATCH IS NOW READY TO TEST 4 Close all vehicle doors except the door being investigated NOTES:
Figure 1 - Unlatched position shown
Figure 2 - First safety latched position shown
Figure 3 - Fully latched position shown
Test will not work if latch is only in first safety latch position 5 Rotate latch claw (using a small screw driver or similar), to the fully latched position (figure 3)
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NOTE: Unlocked position shown 6 Confirm that the latch interior release lever is in the unlocked position as shown
NOTE: Locked position shown 7 Press the lock button on the key-fob or smart key Does the latch interior release lever move from the unlocked
position to the locked position? Yes
GO to C5. No
If this is a repeat test and the vehicle electrical test section
has been completed and confirmed that vehicle is working
correctly, then replace the door latch. If replacing latch as part
of a warranty claim, please quote reference code LKINOP in
the technician comments section of the warranty claim C5: PHYSICAL TEST 2
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NOTE: Unlocked position shown 1 With the latch in the locked state (i.e. the latch interior release lever is in the locked position), press the key-fob or smart key
unlock button Does the latch interior release lever move from the locked position
to the unlocked position? Yes
GO to C6. No
If this is a repeat test and the vehicle electrical test section
has been completed and confirmed that vehicle is working
correctly, then replace the door latch. If replacing latch as part
of a warranty claim, please quote reference code LKINOP in
the technician comments section of the warranty claim C6: PHYSICAL TEST 3
NOTE: Fully latched position shown 1 With the latch in its unlocked state, push the latch exterior release lever against its return spring, whilst simultaneously
applying a light pressure to release the latch claw using a
small screw driver or similar Does the latch claw release? Yes
GO to C7. No
Repeat tests C5 and C6 to confirm the fault GO to C5. If the repeat test has confirmed that the exterior release lever will
not release the claw on an unlocked latch replace the door
latch. If replacing latch as part of a warranty claim, please
quote reference code EXTINOP in the technician comments
section of the warranty claim C7: PHYSICAL TEST 4
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NOTE: Fully latched position shown
1 Using a small screw driver or similar, rotate latch claw to the
second fully latched position
NOTE: Figure A - Child lock off position shown
2 If testing a rear door latch, ensure that the child lock is turned
to the off position
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NOTE: Unlocked position shown 3 Confirm that the latch interior release lever is in the unlocked position as shown
4 Whilst the latch is still in its unlocked state, push the latch interior release lever against its return spring, whilst
simultaneously applying a light pressure to release the latch
claw using a small screw driver or similar Does the latch claw release? Yes
Latch has passed all tests to confirm its correct function. DO
NOT REPLACE LATCH as part of any attempts to resolve any
locking functionality issues
No
Repeat test GO to C7. If repeat test has confirmed that the interior release lever will not release the claw when the latch is
in the unlocked state, then replace the latch. If replacing latch
as part of a warranty claim, please quote reference code
INTINOP in the technician comments section of the warranty
claim
PINPOINT TEST D : LATCH MOUNTED DOOR AJAR SWITCH TEST TEST CONDITIONS DETAILS/RESULTS/ACTIONS D1: TEST 4 DOOR LATCH NOTES:
If a customer is complaining of issues relating to a door ajar signal e.g. door latch won’t lock, or alarm system triggering
(indicated via DTC’s), there may be several components that generate the fault, including www.JagDocs.com