Accessory Management - CITROËN DS3 R3 Max System User's Manual

Hydraulic pump
1. Nominal value is ~50bars
2. Electrical pump driven by ECU
3. At power up, driven until 53 bars is reached, message 1 will
appear on screen
If Pressure under 47bars, pump ON until 53bars is
reached
If pressure under 20bars during more than 3s , pump
is not driven anymore (avoid damage from the loom,
pump, etc...)
If Accu pressure sensor failed => swap to Hydraulic
pressure sensor
For FIA regulation, after 3s than APC is OFF, hydraulic pressure
is released. Message 2 will appear on screen.
Nb: If Power is back ON before or Main is switched OFF, this will
not be done or won't be complete.
Fuel Pump
1. ON at power up during few seconds
2. ON if Engine ON
3. Can be forced (to pump fuel out of the tank), Power OFF
keep pushing AUX button while Power is switched ON
2. Driver System Overview

6. Accessory Management

Water Cooling Fans
1. Both ON if Water temperature>90° then OFF <85°
2. Can be forced, APC OFF keep pushing Fan button while
Power is switched ON.
3. OFF in any case if the engine is stalled excepted in STAGE
mode.
Turbo Temperature
1. If T4>910°C Bang Bang is OFF
2. Entry Bang Bang temperature <900°C
3. When Car is stationary, Gearbox in Neutral and Road Mode
activated
4. Message 3 appears on screen if the temperature is too high
to switch the engine OFF.
Message 1
System User Guide - 03.12.14
Message 2 Message 3
16