Pedestrian Protection System - Pedestrian Protection System
Diagnosis and Testing
Principles of Operation Published: 09-Dec-2013
For a detailed description of the Pedestrian Protection System, refer to the relevant Description and Operation section in the
workshop manual.
REFER to: Pedestrian Protection System (501-20C Pedestrian Protection System, Description and Operation) / Pedestrian Protection System (501-20C Pedestrian Protection System, Description and Operation) / Pedestrian Protection System (501-20C Pedestrian Protection System, Description and Operation).
Inspection and Verification
WARNINGS:
TO AVOID ACCIDENTAL DEPLOYMENT AND POSSIBLE PERSONAL INJURY, THE BACKUP POWER SUPPLY MUST BE DEPLETED
BEFORE REPAIRING OR REPLACING ANY PEDESTRIAN PROTECTION SYSTEM COMPONENTS. TO DEPLETE THE BACKUP POWER
SUPPLY ENERGY, DISCONNECT THE BATTERY GROUND CABLE AND WAIT TWO MINUTES. FAILURE TO FOLLOW THIS
INSTRUCTION MAY RESULT IN PERSONAL INJURY.
Do not use a multimeter to probe the pedestrian protection system actuators. It is possible for the power from the
multimeter battery to trigger the activation of the actuator. Failure to follow this instruction may result in personal injury.
CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not
guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.
NOTES:
If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the
Warranty Policy and Procedures manual (section B1.2), or determine if any prior approval programme is in operation, prior to
the installation of a new module/component.
When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places, and with
an up-to-date calibration certificate. When testing resistance always take the resistance of the digital multimeter leads into
account.
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
It is advisable not to use a cellular phone or to have a cellular phone in close proximity when working on the pedestrian
protection system or components
Given the legal implications of a restraints system failure, harness repairs to pedestrian protection system circuits are
not acceptable. Where the text refers to "REPAIR the circuit", this will normally mean the replacement of a harness.
After 5 hood deployment events, a new Pedestrian Protection System Control Module (PPSCM) and wiring harness must be
installed.
1. Verify the customer concern
2. Visually inspect for obvious signs of damage and system integrity
Visual Inspection
Mechanical Electrical
Hood
Hood hinge
Hood deployment controls
Fuses
Wiring harnesses and connectors
Pedestrian Protection System Control Module (PPSCM)
Impact sensors
Hood deployment controls
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to
the next step
4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for
Terotex HV 200 extra spray - 1L can Teroson 176.48 Terotex HV 200 extra spray - 10L tin Teroson 179.40A Terotex HV 200 extra spray - 60L barrel Teroson 170.96J Terotex HV 400 1L can Teroson 169.65Q Terotex HV 400 10L tin Teroson 169.76C Terotex HV 400 60L barrel Teroson 169.85M Teroson cavity spray 500ml aerosol Teroson 155.71A Underbody Wax - - Terotex wax black 1L can Teroson 114.59F Protective wax Teroson 122.73Q Underbody Coating - - Bodyguard stonechip coating (textured) can - black 3M 08868 Bodyguard stonechip coating (textured) can - white 3M 08878 Bodyguard stonechip coating (textured) can - grey 3M 08879 Bodyguard stonechip coating (flat) can - black 3M 08158 Bodyguard stonechip coating (flat) can - grey 3M 08159 Anti chip coating smooth - grey 3M 08886 Terotex record black 1L can Teroson 122.48N Terotex record light 1L can Teroson 165.53S Terotex anti chip compound light (UBC) 1L can Teroson 191.08V Terotex anti chip compound black (UBC) 1L can Teroson 191.32V Trim Adhesive - - Auto adhesive - aerosol - clear (trim) 3M 08080 Auto adhesive - brushable - clear (trim) 3M 08150 Contact adhesive - aerosol - amber 3M 08090 Corrosion Protection - - Zinc spray 3M 09113 Zinc spray Teroson 158.18T Anti Corrosive Agent - - Terotex HV 350 1L can Teroson 141.78L Terotex HV 350 10L can Teroson 160.02T Terotex HV 350 60L barrel Teroson 160.01S Sound Deadening - - Sound deadening sheets 3M 08840 Terodem SP 100 alu Teroson 190.33 Terodem SP 200 Teroson 190.55M Terodem SP 300 50 x 50 Teroson 145.28R Terodem SP 300 100 x 50 Teroson 134.29X Flexible Part Repair - - Flexible part repair material (FPRM) 3M 05900 Adhesives / Thread Locking - - Lock N Seal 243 thread locking Loctite 13701 Lock N Seal 243 thread locking Loctite 14131 Lock N Seal 243 thread locking Loctite 25684 Stud N Bearing fit 271 Loctite 13704 Stud N Bearing fit 271 Loctite 14130 Stud N Bearing fit 271 Loctite 25685 Pipe sealant 577 Loctite 16604 Pipe sealant 577 Loctite 25689 Pipe sealant 55 Loctite 31899 Gasket - - Multi gasket Loctite 25688 Silicone copper Loctite 19245 Silicone copper Loctite 82046 Silicone 596 black Loctite 19242 Silicone 596 black Loctite 59875 3020 gasket adhesive Loctite 31458 NVH Baffle - - Sikabaffle 278 SIKA Approved Service Material Supplier - Contact Details
3M
3M United Kingdom PLC
3M Centre
Cain Road
Bracknell
Berkshire
RG12 8HT
Telephone (01344) 858000
www.3m.com
Cooper Pegler
Burgess Hill
Sussex
RH 15 9LA
Telephone (014446) 42526
Sika Ltd
Watchmead
Welwyn Garden City
Hertfordshire
AL7 1BQ
Telephone (01707) 394444
www.sika.co.uk
SATA Spray Equipment
Minden Industrial equipment
16 Greyfriars Road
Moreton Hall
Bury St Edmunds
Suffolk
IP32 7DX
Telephone (01284) 760791
www.sata.com
Henkel Loctite Adhesives Limited
Technologies House
Wood Lane End
Hemel Hempstead
Hertfordshire
HP2 4RQ
Telephone (01442) 278000
www.loctite.co.uk
Teroson
Henkel Ltd
Apollo Court
2 Bishops Square Business Park
Hatfield
Hertfordshire
AL10 9EY
Telephone (01707) 635000
www.henkel.co.uk
Underbody sealer
Under floor areas and the front part of the spare wheel well are treated with a plastisol PVC underbody sealer. This material is
not suitable for re-treatment. When repairing areas of underbody sealer, strip the factory-applied underbody sealer back to a
suitable break point. Ensure that a clean metal surface is exposed and that the edge of the existing adheres soundly to the
panel.
Apply new underbody sealer between primer and surface paint operations. Apply seam sealer as necessary before application
of underbody sealer. Ensure that blanking plugs and grommets in the floor pan (except those used for wax injection) are fitted
before underbody sealer application. Refit any heat-fusible plugs which have been disturbed in repair with the aid of a hot air
blower, or replace with rubber grommets
CAUTION: Ensure that suspension units, wheels, tires, power unit, drive shafts, exhaust and brakes, (including all
mounting points), are shielded prior to application of fresh underbody sealer. www.JagDocs.com
