Page 124 of 162
AUTOMATIC TRANSMISSION
Fault finding - Interpretation of statuses
23A
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Vdiag No.: 04, 05
ET071
CONTINUED
Conformity check with engine running.
OPEN
SLIPPING
CLOSED
SIGNAL
In the event of a fault, consult the interpretation of fault DF097 "Torque converter
lock-up".
This status involves slip action when changing gear during a road test.
IMPORTANT
It is essential to have 2 people to perform these checks during a road test.
In the event of a fault, consult the interpretation of fault DF097 "Torque converter
lock-up".
Check (engine running at idle speed and brake pedal depressed), lever in position "R",
ET013 "Gear engaged" = "R" or lever in position "M", ET013 "Gear engaged" = "1",
"2", "3".
In the event of a fault, consult the interpretation of fault DF097 "Torque converter
lock-up".
Check the interpretation of fault DF097 "Converter lock-up".
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 134 of 162
AUTOMATIC TRANSMISSION
23A
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AJ0 BVA
Vdiag No.: 04, 05AUTOMATIC TRANSMISSION
Fault finding - Parameter summary table
Tool parameter Diagnostic tool title
PR004Transmission oil temperature
PR006Engine speed
PR007Turbine speed
PR008Computer voltage supply
PR022Accelerator pedal position
PR067Calculated accelerator pedal position
PR105Vehicle speed
PR106Effective engine torque
PR123Calculated engine torque
PR153Slow torque setpoint
PR154Rapid torque setpoint
MR-372-J84-23A000$720.mif
Page 136 of 162

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of parameters
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AJ0 BVA
Vdiag No.: 04, 05
PR006
ENGINE SPEED
Note:
Parameter PR006 "Engine speed" applies to the following sub-functions:
"Gear changes".
"Torque activation".
"Driver parameters".
PARAMETER
DEFINITIONThis parameter shows the engine speed in rpm.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
No faults should be present or stored.
Conformity check with engine stopped and ignition on
PR006 = 0 rpm
In the event of a fault, run a multiplex network test (see 88B, Multiplexing), check the interpretation of the fault
(see 13B EDC16 CP33 M9R 721, Interpretation of faults, DF195 "Camshaft sensor/engine speed
consistency").
Conformity check with engine at idle speed, engine coolant temperature > 80 ˚C
PR006 ≈≈ ≈ ≈
800 rpm
In the event of a fault, check the interpretation of fault (see 13B EDC16 CP33 M9R 721, Interpretation of faults,
DF195 "Camshaft sensor/engine speed consistency").
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
AJ0_V04_PR006/AJ0_V05_PR006
Page 137 of 162

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of parameters
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Vdiag No.: 04, 05
PR007
TURBINE SPEED
Note:
Parameter PR007 "Turbine speed" applies to the following sub-functions:
"Gear changes".
"Torque activation".
PARAMETER
DEFINITIONThis parameter shows the gearbox turbine speed in rpm.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
No faults should be present or stored.
Conformity check with engine stopped and ignition on
PR007 = 0 rpm
In the event of a fault, consult the interpretation of fault DF038 Turbine speed sensor circuit.
Conformity check with engine running, engine coolant temperature > 80 ˚C
PR007 "Turbine
speed"PR006 "Engine
speed"PR004 "Gearbox
oil temperature"ET013 "Gear
engaged"ET012 "Gear lever
position"
0 rpm≈ 800 rpm 25 ˚C 1 D
≈ 660 rpm≈ 800 rpm 25 ˚CDISENGAGE
(clutch
disengagement)D
In the event of a fault, consult the interpretation of fault DF038 Turbine speed sensor circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
AJ0_V04_PR007/AJ0_V05_PR007
Page 139 of 162

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of parameters
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Vdiag No.: 04, 05
PR022
ACCELERATOR PEDAL POSITION
Note:
Parameter PR022 "Accelerator pedal position" applies to the following sub-functions:
"Gear changes".
"Torque activation".
"Driver parameters".
PARAMETER
DEFINITIONThis parameter indicates the accelerator pedal position as a %.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
No faults should be present or stored.
Conformity check with engine stopped and ignition on
Full load: PR022 "Accelerator pedal position" ≈≈ ≈ ≈
114 % and PR067 "Calculated accelerator pedal position"
= 100 %.
In the event of a fault (see 13B EDC16 CP33 M9R 721, Interpretation of faults, DF196 "Pedal sensor gang 1
circuit" or DF198 "Pedal sensor gang 2 circuit").
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
AJ0_V04_PR022/AJ0_V05_PR022
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AUTOMATIC TRANSMISSION
Fault finding - Interpretation of parameters
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Vdiag No.: 04, 05
PR067
CALCULATED ACCELERATOR PEDAL POSITION
Note:
Parameter PR067 "Accelerator pedal position" applies to the following sub-functions:
"Gear changes".
"Torque activation".
PARAMETER
DEFINITIONThis signal is supplied by the injection computer when the cruise control/speed limiter
is operating and when there is no longer a signal from the accelerator pedal. This
parameter indicates the accelerator pedal position as a %.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
No faults should be present or stored.
Conformity check with engine stopped and ignition on, engine running, engine coolant
temperature > 80 ˚C
Full load: PR022 "Accelerator pedal position" ≈≈ ≈ ≈
114 % and PR067 "Calculated accelerator pedal position"
= 100 %.
In the event of a fault (see 13B EDC16 CP33 M9R 721, Interpretation of faults, DF196 "Pedal sensor gang 1
circuit" or DF198 "Pedal sensor gang 2 circuit").
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
AJ0_V04_PR067/AJ0_V05_PR067
Page 142 of 162

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of parameters
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Vdiag No.: 04, 05
PR106
EFFECTIVE ENGINE TORQUE
Note:
Parameter PR106 "Effective engine torque" applies to the following sub-functions:
"Gear changes".
"Torque activation".
PARAMETER
DEFINITIONThis parameter indicates the effective engine torque in Nm. This signal is supplied to
the gearbox computer by the injection computer.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
No faults should be present or stored.
Conformity check with engine ignition on and engine running at idle speed.
PR006 "Engine
speed"PR007 "Turbine
speed"PR106 "Effective
engine torque"PR153 "Slow
torque"PR154 "Fast
torque"
0 rpm 0 rpm 140 Nm 360 Nm - 32 Nm
≈ 802 rpm≈ 704 rpm≈ 34 Nm≈ 360 Nm≈ - 30 Nm
In the event of a fault, carry out a multiplex network test (see 88B, Multiplexing).
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
AJ0_V04_PR106/AJ0_V05_PR106
Page 143 of 162
AUTOMATIC TRANSMISSION
Fault finding - Interpretation of parameters
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AJ0 BVA
Vdiag No.: 04, 05
PR153
SLOW TORQUE SETPOINT
Note:
Parameter PR153 "Slow torque setpoint" applies to the following sub-function:
"Slow torque activation".
PARAMETER
DEFINITIONThis parameter indicates the slow torque setpoint in Nm.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
No faults should be present or stored.
Conformity check with engine ignition on and engine running at idle speed.
PR006 "Engine
speed"PR007 "Turbine
speed"PR106 "Effective
engine torque"PR153 "Slow
torque"PR154 "Fast
torque"
0 rpm 0 rpm 140 Nm 360 Nm - 32 Nm
≈ 802 rpm≈ 704 rpm≈ 34 Nm≈ 360 Nm≈ - 30 Nm
In the event of a fault, carry out a multiplex network test (see 88B, Multiplexing).
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
AJ0_V04_PR153/AJ0_V05_PR153