Pinpoint Test C: Door Latching and Locking Function Test

WARNING: This page is about a different car, the 2011 Jaguar XKR, 2011 Jaguar XK, 2010 Jaguar XKR, and 2010 Jaguar XK. However, it is still accessible from the selected car via links, so may be relevant.

Door Latch Test
NOTE: Test as a single component to ensure that the door latch is not replaced unnecessarily, when another component may be at fault

Remove door trim from door Refer to Front Door Trim Panel information. Refer to Rear Door Trim Panel information.

Remove module plate / closing panel from door

Remove latch module from door. Refer to Front Door Latch . and Rear Door Latch . .

Inspect latch module for any visual damage

Disconnect interior release bowden cable at door latch

Disconnect exterior release bowden cable at door latch

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

Close all vehicle doors except the door being investigated

NOTE: Figure 1 - Unlatched position shown

NOTE: Figure 2 - First safety latched position shown

NOTE: Figure 3 - Fully latched position shown

NOTE: Test will not work if latch is only in first safety latch position

Rotate latch claw (using a small screw driver or similar) to the fully latched position (Figure 3)

NOTE: Unlocked position shown

Confirm that the latch interior release lever is in the unlocked position as shown

NOTE: Locked position shown

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 step 2.

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
Test 1 Door Latch

NOTE: Locked position shown

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 step 3.

NO: Refer to Pinpoint Test E . If pinpoint test E has been completed and confirmed that vehicle is correctly supplying signals to latch, then replace the door latch. If replacing latch as part of a warranty claim, please quote reference code UNLKINOP in the technician comments section of the warranty claim
Test 2 Door Latch

NOTE: Fully latched position shown

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 step 4.

NO: Repeat tests C2 and C3 to confirm the fault. Go to step 2. 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
Test 3 Door Latch

NOTE: Fully latched position shown

Using a small screw driver or similar, rotate latch claw to the second fully latched position

NOTE: Figure A - Child lock off position shown

If testing a rear door latch, ensure that the child lock is turned to the off position

Confirm that latch interior release lever is in the unlocked position as shown

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. Refer to Pinpoint Test E . To confirm vehicle electrical signal is received by the latch

NO: Repeat this testGo to step 4. 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