display RENAULT KANGOO 2013 X61 / 2.G Air Bags AC4 And Pretensioners Workshop Manual

88C-2V1 MR-376-X76-88C000$010.mif
88C
2nd generation
(AC4 phase II)
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding method applicable to all computers with the following specifications:
2. CONDITIONS FOR APPLICATION OF THE TESTS DEFINED IN THIS FAULT FINDING
The tests defined in this fault finding should only be applied to vehicles not fitted with side airbags but which are
fitted with the 2nd generation of airbag computers.
These new computers can be identified by the heading AC4 Ph 2 on the fault finding tools.
The tests defined in this fault finding must only be carried out if the fault is present on the vehicle at the time the test
is carried out.
Only the computer fault leads to replacement of the computer, whether the fault is present or simply stored.
If the fault is not present but simply stored, applying the checks recommended in the fault finding will not allow the
reason why this fault was stored to be located. In this case only, the wiring and the faulty component connections
should be checked (it is possible to access the wiring concerned in fault finding mode to try to display the change
from stored fault to present fault).
3. PREREQUISITES FOR FAULT FINDING
Documentation type:
Fault finding procedure (this manual):
• Assisted fault finding (integrated into the diagnostic tool), Dialogys.
Wiring Diagrams:
•Visu - Schéma
Type of diagnostic tools:
•CLIP
*VLL — Very Long LifeVehicle: KANGOO VLL*
Function concerned: Airbags and seat belt
pretensionersComputer name: AC4 phase II
AIRBAGS AND PRETENSIONERS
Fault finding – Introduction

88C-11V1 MR-376-X76-88C000$020.mif
AIRBAGS AND PRETENSIONERS
Fault finding – Operating diagram88C
2nd generation
(AC4 phase II)
Correct insulation value: display > = 100 h or 9999 flashing.AIRBAGS
Measuring point Correct value
Driver C0, C2 and C42 to 9.4 ohms
Passenger C0 and C41.6 to 4.6 ohms
PRETENSIONERS
Measuring point Correct value
C0, C1 and C31.6 to 4.6 ohms

88C-15
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-88C000$060.mif
88C
2nd generation
(AC4 phase II)
DF001
PRESENT
OR
STOREDCOMPUTER
1.DEF: Internal electronic fault
2.DEF: Impact detected
NOTESUse Wiring Diagrams Technical Note for Kangoo VLL.
Replace the airbag computer, component code 756 (consult the section "Replacement of components" for this
operation) (see MR Mechanical: MR-AIRBAGS-SRP, 88, Airbags and seat belt pretensioners, Computer:
Removal-refitting).
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults

88C-16
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-88C000$060.mif
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults88C
2nd generation
(AC4 phase II)
DF002
PRESENT
OR
STOREDCOMPUTER SUPPLY VOLTAGE
1.DEF: Too many micro-breaks
2.DEF: Supply voltage too low
NOTESUse the B40 30-track adapter to work on the computer connector.
Use Wiring Diagrams Technical Note for Kangoo VLL.
1.DEF
2.DEF
NOTESNone.
Carry out the operations necessary to obtain the correct computer supply voltage:
10.5 volts ± 0.1 < correct voltage < 16 volts ± 0.1.
– Battery charge check.
– Charging circuit check.
– Check the tightness and condition of the battery terminals.
– Computer earth check.
– Check the condition of the + computer locking connections.

88C-17
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-88C000$060.mif
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults88C
2nd generation
(AC4 phase II)
DF003
PRESENT
OR
STOREDDRIVER'S FRONTAL AIRBAG CIRCUITCC: Short circuit
CO: Open circuit
CC.1: Short circuit to 12 volts
CC.0: Short circuit to earth
NOTESNever carry out measuring operations on ignition lines using any tool other than Clip,
NXR or XRBAG.
Use Wiring Diagrams Technical Note for Kangoo VLL.
CO
CC
NOTESNone.
Lock the computer using the command on the diagnostic tool.
Switch off the ignition and remove the 2 mounting bolts from the steering wheel cushion.
Check that it is correctly connected.
Disconnect the steering wheel airbag and connect a dummy ignition module to the ignition module connector.
Switch on the ignition and carry out a check using the diagnostic tool.
Replace the airbag if the fault is now stored (fault no longer declared as present) (see MR Mechanical: MR-
AIRBAGS-SRP, 88, Airbags and seat belt pretensioners, Driver's airbag: Removal-refitting).
With the ignition switched off, disconnect and reconnect the connector of the rotary contact beneath the steering
wheel.
Check the connections if the fault has become stored (fault no longer declared present).

88C-18
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-88C000$060.mif
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults88C
2nd generation
(AC4 phase II)
DF003
CONTINUED 1
The CLIP, NXR or XRBAG tools must be used for checking the resistance at point C2 of the driver's front airbag
circuit.
If the value obtained is incorrect, replace the rotary switch under the steering wheel.
Reconnect the rotary switch under the steering wheel, disconnect the computer connector and fit the B40 30-track
adapter.
The CLIP, NXR or XRBAG tool must be used to measure the resistance on the adapter cable marked A.
If the value obtained is not correct, check the connections of the 30-track connector (tracks 10 and 11) and replace
the wiring if necessary.
If the checks carried out have not shown the presence of a fault, check on the base of the airbag computer for the
presence of the 5 shunt opening pins for the 30-track connector.
Check the condition of the computer connections.
Check the condition of the 30-track connector (locking system, etc.).

88C-19
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-88C000$060.mif
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults88C
2nd generation
(AC4 phase II)
DF003
CONTINUED 2
CC.1
CC.0NOTESNone.
Lock the computer using the command on the diagnostic tool.
Switch off the ignition and remove the 2 mounting bolts from the steering wheel cushion.
Check the condition of the trigger wire.
The CLIP, NXR or XRBAG tools must be used for measuring the insulation appropriate to the type of fault at point
C2 of the driver's front airbag circuit.
If the value obtained is incorrect, replace the rotary switch under the steering wheel.
Reconnect the rotary switch under the steering wheel, disconnect the computer connector and fit the B40 30-track
adapter.
The CLIP, NXR or XRBAG tools must be used for measuring the insulation appropriate to the type of fault on the
cable marked A on the adapter.
If the value obtained is not correct, check the connections of the 30-track connector (tracks 10 and 11) and replace
the wiring if necessary.

88C-20
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-88C000$060.mif
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults88C
2nd generation
(AC4 phase II)
DF004
PRESENT
OR
STOREDPASSENGER FRONTAL AIRBAG CIRCUITCC: Short circuit
CO: Open circuit
CC.1: Short circuit to 12 volts
CC.0: Short circuit to earth
NOTESNever carry out measuring operations on ignition lines using any tool other than Clip,
NXR or XRBAG.
Use Wiring Diagrams Technical Note for Kangoo VLL.
CO - CC
NOTESNone.
Lock the computer using the command on the diagnostic tool.
Switch off the ignition, disconnect the computer connector and fit the B40 30-track adapter.
The CLIP, NXR or XRBAG tool must be used to measure resistance on the adapter cable marked B.
Is the value obtained correct?
YESIf the value obtained is correct on cable B of the adapter, check on the base of the
airbag computer for the presence of the 5 shunt opening pins on the 30-track
connector.
Check the condition of the computer connections.
Check the condition of the 30-track connector (locking system, connections, etc.).

88C-21
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-88C000$060.mif
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults88C
2nd generation
(AC4 phase II)
DF004
CONTINUED 1
NOIf the value obtained is not correct on cable B of the adapter, check the connections
on the 30-track connector (tracks 13 and 14).
If the value remains incorrect, switch off the ignition and remove any necessary
components
to access the wiring of the passenger airbag module (Kangoo: remove the
dashboard). Disconnect the passenger airbag ignition module, connect a dummy
ignition module to the ignition module connector then re-measure the resistance on
the cable marked B of the adapter.
If the value obtained is correct, replace the passenger's airbag module.
If the value obtained is not correct, replace the airbag wiring.

88C-22
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-88C000$060.mif
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults88C
2nd generation
(AC4 phase II)
DF004
CONTINUED 2
CC.1 - CC.0NOTESNone.
Lock the computer.
Switch off the ignition, disconnect the computer connector and fit the B40 30-track adapter.
The CLIP, NXR or XRBAG tools must be used for measuring the insulation appropriate to the type of fault on the
cable marked B on the adapter.
Is the value obtained correct?
YESIf the value obtained is correct on cable B of the adapter, check the condition of the
connections on the computer.
NOIf the value obtained is not correct on cable B of the adapter, check the connections
on the 30-track connector (tracks 13/14).
If the value remains incorrect, replace the airbag wiring.