Pinpoint Test D: Interior Lamp Signal Tests

WARNING: This page is about a different car, the 2018 Jaguar XE and 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.

D1: INTERIOR LAMP SIGNAL TEST 1
1. Using the manufacturer approved diagnostic system, check datalogger signal - Master Interior Light Switch (0xD902)
2. Briefly touch the front interior lamp lens and check for a change in the signal
Did the signal change?
- Yes : Tests inconclusive. GO to Pinpoint Test A .
- No : Test failed. GO to D2.
D2: INTERIOR LAMP SIGNAL TEST 2
1. Refer to the relevant section of the service information and remove the front interior lamp
2. Set a multimeter to measure voltage
3. Connect the multimeter to terminals 19 (WH-OG) and 10 (BK-YE)
Does the multimeter display battery voltage?
- Yes : Test passed. GO to D3.
- No : Test failed. GO to D4.
D3: INTERIOR LAMP SIGNAL TEST 3
1. Connect the multimeter to terminals 19 (WH-OG) and 10 (BK-YE)
2. Briefly touch the front interior lamp lens and check for a change in the voltage
Did the multimeter measure 0V?
- Yes : Tests inconclusive. GO to Pinpoint Test A .
- No : Install a new front interior lamp
D4: INTERIOR LAMP SIGNAL TEST 4
1. Connect the multimeter to terminal 10 (BK-YE) and earth
Did the multimeter measure 0V?
- Yes
  Refer to the appropriate SYSTEM WIRING DIAGRAMS information and check the front interior lamp switch signal circuit for open circuit, high resistance
- No : Refer to the appropriate SYSTEM WIRING DIAGRAMS information and check the front interior lamp earth circuit for open circuit, high resistance
  NOTE: In step 1, do not disconnect the electrical connector(s). The lamp is removed for access only.