landrover Workshop Repair Guides

Land Rover Workshop Service and Repair Manuals

Microswitch - positive temperature co- efficient (PTC) heater - Td4 models > < Harness - positive temperature co- efficient (PTC) heater - Td4 models|Page 1051
Page 878
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HEATING AND VENTILATION

REPAIRS

80-13

21. Disconnect 3 Lucar connections from PTC 

element.

22. Release cable ties securing PTC harness to 

main harness.

23. Remove air intake plenum.

 

 + 

 HEATING AND VENTILATION, 

REPAIRS, Plenum - air intake.

24. Release 2 clips securing PTC harness from 

plenum box section.

25. With assistance release 2 grommets from 

bulkhead and remove PTC harness from 
vehicle.

Refit

1. With assistance route PTC harness through 

bulkhead and fit grommets.

2. Fit clips securing PTC harness to plenum box
3. Fit air intake plenum.

 

 + 

 HEATING AND VENTILATION, 

REPAIRS, Plenum - air intake.

4. Fit cable ties securing PTC harness to main 

bulkhead harness.

5. Connect Lucar connections to PTC element.
6. Fit air duct.
7. Fit RH demister vent duct.
8. Fit fascia.

 

 + 

 INTERIOR TRIM COMPONENTS, 

REPAIRS, Fascia - up to 04MY.

9. Connect and secure PTC harness multiplug to 

engine harness.

10. Secure PTC harness/relay to bulkhead bracket
11. Fit clip to secure PTC harness to ECM housing 

bracket.

12. Fit PTC positive leads to (80 amp) fuse holder, 

fit and tighten nuts to 7 Nm (5.2 lbf.ft).

13. Fit (80 amp) fuse cover.
14. Secure PTC harness/relays to ECM housing 

bracket.

15. Fit fuse box, ensure harness routing is clear 

suspension turret. Tighten nuts to 10 Nm (7 
lbf.ft).

16. Fit fuse box cover.
17. Fit 'E' box housing into securing brackets.
18. Fit and tighten nut securing housing.
19. Fit harness and air duct rubber sleeve's to 

housing.

20. Fit harness cable tie and secure relay in 

housing.

21. Connect and secure joint harness and cooling 

fan multiplugs.

22. Connect cooling fan sensor and gearbox ECU 

multiplugs.

23. Fit ECM into 'E' box.

 

 + 

 ENGINE MANAGEMENT SYSTEM - 

EDC, REPAIRS, Engine control module 
(ECM).

24. Position PTC positive cable to battery and 

secure with bolt, tighten to 25 Nm (18 lbf.ft).

25. Connect battery earth lead.

Microswitch - positive temperature co- efficient (PTC) heater - Td4 models > < Harness - positive temperature co- efficient (PTC) heater - Td4 models|Page 1051