Engine Diagnostic - Renault MR18 F3R 2021 User Manual

Vref distribution:
Vref 1 Vref 2
Rail-P E-WasteGate
Throttle P/2-2
Oil-P P/2-1 T/2-1
Pedal A Gear-Pos
Pedal B Clutch-P
CRANK
CAM IN
CAM EX

4.5 Engine diagnostic

Diag Signification
1 Std 1 Limiter OK
Throttle default. Delta throttle position coherency between track 1 and track 2 > 15% for 250ms
4 DBW
6 p21 P boost default. Boost pressure too high
7 Pit Pit limiter active
8 nTurbo Turbo speed default. Turbospeed too high
11 Pedal security Pedal security. Throttle pedal> 70% + P brake> 40 Bars for 150 msec = engine kill
12 Kill Ignition switch off
14 ELB ELB default. ELB connection is lost
17 Engine security Engine security. Oil pressure is less than 1 Bar for 2 seconds or Water temp is higher than 120°C for 3 seconds
Engine synchronization
Diag Signification
2 Crank 1
3 Crank 2
4 Cam 1
5 Cam 2
Engine state
Diag Signification
0 Stall
1 Cranking
2 Running
Kill status
Diag Signification
0 Run
1 Killed
Wheel speed diag
Diag Signification
0 Ok
1 Off
2 Fault
MR18 F3R Engine user manual V03, February 2021
Vref 3 Vref 4
Accelero F Brake-P
FL Damper R Brake-P
FR Damper Steering Pos
RL Damper Baro-P
RR Damper N-Turbo
Ignition limiter active
Gear State
Diag Signification
0 Idle
3 Up extract time out
4 Up extract
5 Up engage Tmo
6 Up engage
8 Up lock
10 Up recenter
15 Up Failed
19 Dn extract Tmo
20 Dn extract
21 Dn engage Tmo
22 Dn engage
24 Dn lock
26 Dn recenter
31 Dn failed
Synchronization state
Diag Signification
0 Stall
1 Moving
2 Search
3 Conf
4 Phasing
5 Phased
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