Page 18 - Foton Workshop Manual - Tunland (AT)

01-12 INTRODUCTION - GENERAL SERVICE GUIDELINE

01 • When the negative (-) cable is disconnected from the battery, the memory of
the clock and the radio system will be reset. So before repairing, record all
necessary data. At the end of repairing, reset the radio system and the clock.
Never use any backup power supply from another vehicle, which may reset the
memory of the systems.The backup power supply will power up the SRS, which
may unexpectedly deploy the airbag during servicing.
• Even after a minor impact that the SRS does not deploy, it is always important
to check the horn button assembly and airbag ECU. (Refer to “Chapter 62.
Supplemental restraint system - horn button assembly, replacement”, “Chapter
62. Supplemental restraint system - airbag ECU, replacement”)
• Never use any SRS part from another vehicle. If replacement is required, be
sure to use new spare parts.
• Do not disassemble the horn button assembly.
• If the horn button assembly has been dropped, or there are cracks, dents or
other faults on the housing, replace it with a new one.
• Do not expose the horn button assembly to heat or flame.
• Use a multimeter with high resistance to troubleshoot the SRS electrical circuits.
• During servicing, be sure to follow the instructions on the labels attached to the
SRS components.
• After repairing the SRS, remember to check the airbag indicator lamp. (Refer
to “Chapter 04. Diagnosis - airbag system, pre-check”, “Chapter 04:
Diagnosis - airbag system, airbag indicator lamp always on”, “Chapter 04.
Diagnosis - airbag system, airbag indicator lamp always off”)

(b) Clock Spring
• Ensure the clock spring is centrally
aligned and the steering wheel is
correctly installed on the steering
column. Otherwise it may lead to loose
harness connector or other defect.
(Refer to "Chapter 51. Steering system
- steering wheel assembly, overhaul",
"Chapter 62. Supplemental restraint
system - clock spring, replacement")
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