Valtra 6850 - Page 499

120
Model Code Page
37. Autocontrol 5
1. 8. 2000
370 6
6250--8950
1. 9. 2002
Fault codes in AC 5. Note! Fault codes in AC 5.2, see pages 371/5 and 6.
Fault
code
Pins Fault identification Fault
funk-
tion le-
vel
Te s t s Repairs,
settings
P101 A1A2/12 Proportional valve P1 of DPS takes current which exceeds or goes
below the given limits. Short circuit or wire damage (C1).
3
P103 A1A2/10 Proportional valve P2 of DPS takes current which exceeds or goes
below the given limits. Short circuit or wire damage (C2).
3
S
e
e
t
a
b
l
e
S
e
e
in
s
t
r.
P105 A1A2/8 Proportional valve P3 of DPS takes current which exceeds or goes
below the given limits. Short circuit or wire damage (C3).
3
S
e
e
t
a
b
l
e
d) on pa-
ge 370/13
S
e
e
i
n
s
t
r
.
C on page
370/21.
P107 A1A2/6 Forward drive proportional valve P4 takes current which exceeds or
goes below the given limits. Short circuit o r wire damage (F).
3
g
P109 A1A2/4 Reverse drive proportional valve P5 takes current which exceeds or
goes below the given limits. Short circuit o r wire damage (R).
3
A311 A1A3/2 Gearbox oil temperature value (sensor B14) impossible (over
+150˚C). Faultysensororitswiring
3 See table
b) on pa-
3
7
0
/
1
1
See instr.
E on page
3
7
0
/
2
3
A312 A1A3/2 Gearbox oil temperature value (sensor B14) impossible (below
--- 5 0 ˚C). Faultysensororitswiring
3
ge 370/11
g
370/23.
A313 A1A3/4 Signal from gas pedal position sensor B15 below 1 V (DC) or over 7 V (DC). Sen-
sor wrongly fitted or sensor/wires damaged. If fault code A313 is visible together
with fault code A314, there can be a short circuit or earth leak in sensors B15 or B16
(same supply voltage).
3 See table
b) on pa-
ge 370/11
See instr.
G on page
370/24.
A314 A1A3/7 Signal from clutch pedal position sensor B16 below 1 V (DC) or over
7 V (DC). Sensor wrongly fitted or sensor/wires damaged.
3 See table
b) on pa-
ge 370/11
See instr.
F on page
370/23.
A315 A1A3/7
A1A4/4
When the clutch pedal is down (digital input d06 is active), the signal from the clutch
pedal position sensor B16 is 0,5 V (DC) greater or smaller than it was in the calibra-
ting point (voltage value must be beyond allowable limit over one second). Check
the adjustment of the pedal limit switch S9 with the aid of the test mode, adjust if
necessary. Measure and calibrate the position sensor B16. If the fault code appe-
ars in connection with the engine start, ensure the correct starting: depress first the
clutch pedal and after that start the engine. Check the battery condition and charge
(Voltage can be fall too low).
3 See table
b) on pa-
ge 370/11
See instr.
F on page
370/23.
d116 A1A3/9,
10
DPS up---down push buttons (S23) are active simultaneously. Push
buttons in the lever knobs may be in short circuit.
1
S
t
b
l
S
i
t
d117 A1A4/7,
8
Forward (S40) and reverse drive direction (S41) are active simultaneously. Shuttle
lever switches may be in short circuit.
4
See table
a) on pa-
g
e
3
7
0
/
1
0
See instr.
B on page
3
7
0
/
2
0
.
d118 A1A4/10,
11
Both PTO speeds are engaged simultaneously. PTO lever switches (S28/S29) may
be in short circuit.
2
g
e
3
7
0
/
1
0
3
7
0
/
2
0
.
d123 A1A4/14,
7, 8
Hand brake and one or bo th shuttle directions engaged simultaneo-
usly. Shuttle lever s witches may be in short circuit.
4 See table
a) on pa-
ge 370/10.
See instr.
B on page
370/20.
d225 A1A3/7
A1A4/4
Clutch pedal position is below 2 % (0...1 %) and d06 is not active (d06=clutch pedal
limit switch). Check the adjustment of the clutch pedal limit switch S9. Check the
function of the parking brake pilot light H11 (program versions 42--).
3 See table
b) on pa-
ge 370/11
See instr.
F on page
370/23.
F320 A1A1/5,
7
Shuttle speed sensors (B12/B13) give different frequency. Difference
over 30 %. One of the sensor possible faulty.
3
See table
)
See instr D
F321 A1A1/13 Engine rpm lower than what the shuttle sensors (B12/B13) indicate, when one sole-
noid is fully active. Engine rpm sensor B11 may be faulty.
3
c) on page
370/12.
on page
370/22.
F324 A1A1/5,
7
Driving speed over 10 km/h and direction information in t he control
unit is changing. Shuttle sensors B12 or B13 may be faulti or wire
problems.
3 See table
c) on page
370/12.
See instr D
on page
370/22
L419 A1A1/3 Full pressure has been connected to the PTO clutch over 3 seconds, but the PTO
shaft rotation speed is lower than it should be. PTO--clutch may slip. It is possible
that the PTO rpm sensor B7 is faulty. Check in the test mode PTO lever switches
S28 and S29 (check in the test mode that not connected the wrong way round).
Check that there is a correct parameter file in the control unit. Ensure that the PTO
speed parameters P and L are correctly set (in program version 42--).
2 See table
c) on pa-
ge 370/12
See instr D
on page
370/22 and
pages
370/19 and
370/24B.
L422 A1A1/13,
8, 6
One shuttle direction is engaged and full control has been active over 3 seconds.
Shuttle rotation speed is lower than engine speed in relation to the DPS ratio. One
multi--disc clutch in the DPS or in the Shuttle can slip or one proportional valve
(Y4,Y6,Y17,Y11,Y12) can be trapped. This fault code also appears, if both shuttle
sensors (B12,B13) do not give a signal, when engine revs are over 1600 rpm (1700
rpm in versions 50, 52. 60, 62). Check fuse F22.
4