Fault On Solenoid Pilot Valve(S) - Renault Clio Workshop Repair Manual

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Fault finding using bargraph illumination
BARGRAPH 1 RH ILLUMINATED:
This solenoid pilot valve fault may be stored due to the drop in supply voltage (5 volts) of the load
potentiometer supplied by the automatic transmission computer.
In the event of a short circuit between tracks B and C of the load potentiometer, the 1st fault considered by
the computer will be a solenoid valve fault. It is therefore necessary to test the circuit of the load
potentiometer before searching for a possible solenoid pilot valve fault:
- Disconnect the 3 track connector of the load potentiometer.
- Turn the ignition off then on again.
- Replace the load potentiometer if the solenoid pilot valve fault has disappeared and if the potentiometer
fault is confirmed (short circuit test using multimeter).
If however the fault persists, apply the fault finding procedure associated to this solenoid pilot valve fault.
Check the 3 track connector of the solenoid pilot valves on the computer.
After checking the wiring/replacing the connector, does the fault persist?
Disconnect the connector on the sealed
connector. On the sealed connector side, is
there a resistance of 25
and B and between tracks A and C?
Disconnect the solenoid valve wiring and check the continuity on the
Replace the wire.
AUTOMATIC TRANSMISSION
yes
5 between tracks C
yes
wiring lines. Is continuity ensured?
no

Fault on solenoid pilot valve(s).

no Replace the solenoid valves.
yes
Disconnect the solenoid valve wiring and check
the insulation of the lines with respect to earth
as well as the insulation between the wiring
lines.
Is the insulation ensured?
no
yes
Replace the computer and erase the memory if
an M 4-3 computer is fitted.
23-146
23
no
Success
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