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Eldor power unit fault codes (with TEXA diagnostic software)
IDN
Component/Function
ATI
[DTC Code]
Gear sensor diagnosis
11
P0915
[0915 hex]
Throttle sensor consistency test
43
P1120
[1120 hex]
Throttle control diagnosis
P1220
48
[1220 hex]
Gas sensor consistency test
47
P1222
[1222 hex]
Gas idle Switch consistency Test
P1223
77
[1223 hex]
ION acquisition diagnosis
(IonBufferV)
10
P1300
[1300 hex]
IDN ATI: Diagnosis fault number - PO: Power On - Ck: Cranking - Er: Engine Run - Vr: Vehicle Run
Air intake injection system
[Fault
Takeover
Symptom]
Over
maximum
Ck, Er, Vr
Threshold
[0001]
Under
minimum
Ck, Er, Vr
Threshold
[0010]
Plausibility
PO, Ck, Er, Vr
[1000]
Plausibility
PO, Ck, Er, Vr
[1000]
Plausibility
PO, Ck, Er, Vr
[1000]
Plausibility
PO, Ck, Er, Vr
[1000]
Over
maximum
Er, Vr
Threshold
[0001]
Under
minimum
Er, Vr
Threshold
[0010]
- 21 -
Cause
Fault detection rules
CONDITION FOR DETECTION: Rpm > THRPM-
GEARDIAG
DETECTION: It is recognized a fault if
Short circuit to
VGearPos>VGEARPOSMAX for a time > TGEAR-
Supply volta-
SHIFT
ge or Vehicle
Mark: during a gear shift the gear sensor voltage
supply
goes to Vcc. As a voltage equal to Vcc means
short circuit or open circuit it is necessary to use a
timer (TGEARSHIFT) to discriminate the normal
operation from the real fault
Open Circuit
CONDITION FOR DETECTION: Rpm > THRPM-
GEARDIAG
or Short
Circuit to
DETECTION: It is recognized a fault if
Ground
VGearPos<VGEARPOSMIN
Short circuit to
Supply voltage
CONDITION FOR DETECTION: Always
or Vehicle sup-
ply / Open
DETECTION: It is recognized a fault if
Circuit or Short
|VangThrottle1-VangThrottle2|> VANGTHRCOH
Circuit to
Ground
Short circuit to
Supply voltage
CONDITION FOR DETECTION: Always
or Vehicle sup-
ply / Open
DETECTION: It is recognized a fault if
Circuit or Short
AngIntErr>MAXANGINTERR where AngIntErr =
Circuit to
AngThrObj – AngThrottle AngThrObj is throttle tar-
Ground /
get AngThrottle is actual throttle position
Mechanical
Problems
Short circuit to
Supply voltage
CONDITION FOR DETECTION: Always
or Vehicle sup-
ply / Open
DETECTION: It is recognized a fault if |VGasPos1-
Circuit or Short
VGasPos2|> THGASPOSCOH
Circuit to
Ground
CONDITION FOR DETECTION: Always
Signal is not
DETECTION: It is recognized a fault if
plausible or
VGasIDLSw<THLOW1GASSWDIA;
not coherent
THLOW2GASSWDIA<VGasIDLSw<THUP1GAS-
SWDIA; VGasIDLSw>THUP2GASSWDIA
Short circuit to
CONDITION FOR DETECTION: If Rpm >0
Supply volta-
DETECTION: It is recognized a fault if IonBufferV
ge or Vehicle
> VIONMAX
supply
Open Circuit
CONDITION FOR DETECTION: If Rpm >0
or Short
DETECTION: It is recognized a fault if IonBufferV
Circuit to
< VIONMIN
Ground
D
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