MAF Sensor Circuit Short to
Ground

PWM time length < 83 uSec

P0103

MAF Sensor Circuit Short to
Battery

PWM time length > 4500 uSec

Audi R8/Spyder Quick Reference Specification Book • September 2013 133

DTC Chart

DTC

DTC

Error Message

Malfunction Criteria and
Threshold Value

P0108

2 MAF Sensors MAF 2

• Mass air flow HFM2 vs. lower
threshold map HFM2 < 0 - 450
kg/h
or
• Mass air flow HFM2 vs. upper
threshold map > 55 - 1082

P010B

MAF Sensor 2 Circuit
Rationality Check

• Mass air flow 1 - mass air flow
2 and mass air flow 1 < mass
air flow 2 or mass air flow
1 > mass air flow 2 < 30%
or
• Mass air flow 1 - mass air flow
2 and mass air flow 1 < mass
air flow 2 or mass air flow
1 > mass air flow 2 > 30%

P010C

MAF Sensor 2 Circuit
Open or Short to Ground

PWM time length < 83 [us]

P010D

MAF Sensor 2 Circuit
Short to Battery Voltage

PWM time length > 4500 [us]

P010E

2 MAF Sensors MAF 1 MAF 2

PWM time length 0 uSec

P0111

Intake Air Temperature Sensor IAT minus engine temperture
1 Circuit Rationality Check
@ engine start and IAT minus
ambient air temperature @
engine start > 40- 25 K

P0112

Intake Air Temperature Sensor IAT > 125.0° C
Short to Ground

P0113

Intake Air Temperature Sensor IAT < - 36° C
Circuit Open or Short to
Battery Voltage

P0116

Engine Coolant Temperature
Sensor Circuit Stuck /
Rationality Check

•Delta ECT < 3K
• Engine temperature minus
ambient air temperature
@ engine start and engine
temperature minus IAT @
engine start > 40 - 25 [K]

P0117

Engine Coolant Temperature
Sensor Circuit Short to
Ground

Short to ground-ECT > 141° C

P0118

Engine Coolant Temperature
Sensor Circuit Open or Short
to Battery Voltage

Short to battery positive or open
circuit-ECT < - 45.75° C

134 Audi R8/Spyder Quick Reference Specification Book • September 2013

DTC

Error Message

Malfunction Criteria and
Threshold Value

P0121

Throttle Position Sensor
Circuit (Bank 1, Sensor 1)
Rationality Check

• TPS1 - TPS 2 > 6.3%
and
• Actual TPS 1 - calc. value >
actual TPS 2 - calc. value 1%
• Actual TPS 1 - calc. value
> 9%

P0122

Throttle Position Sensor
Circuit (Bank 1, Sensor 1)
Short to Ground

Signal voltage < 0.175 V

P0123

Throttle Position Sensor
Circuit (Bank 1, Sensor 1)
Open or Short to Battery
Voltage

Signal voltage > 4.63 V

P0130

HO2S Heater Circuit Out of
Range (Bank 1, Sensor 1)

• Sensor element temperature
< 640° C
or
• Heater resistance > 950 Ω

P0131

HO2S Circuit Short to Ground
Voltage (Bank 1, Sensor 1)

Virtual mass < 2.00 V
Nernst voltage < 1.75 V
Adjustment voltage (IA) < 0.3 V
Adjustment voltage (IP) < 0.3 V

P0132

O2 Sensor Circuit High
Voltage (Bank 1 Sensor 1)

Virtual mass > 3 V
Nernst voltage > 4 V
Adjustment voltage (IA) > 1.5 V

O2S Circuit response rate
monitoring, area ratio (Bank 1,
Sensor 1)

• Lower value of both area
ratios R2L and L2L in case of
symmetric fault < 0.3[-]
• Lower value of both counters
for area ratio R2L and L2R
≥ 5[-]

P0135

HO2S Heater Circuit Out of
Range (Bank 1, Sensor 1)

Sensor element temperature
< 720° C

P0136

HO2S Circuit Heater Coupling
Check (Bank 1, Sensor 2)

• Delta O2S signal rear > 2 V
• Number of heater coupling
faults > 4[-]

P0137

HO2S Circuit Signal Check
(Bank 1, Sensor 2)

Signal voltage < 60 mV

P0138

HO2S Circuit Short to Battery
Voltage (Bank 1, Sensor 2)

Signal voltage > 1.08 V

Audi R8/Spyder Quick Reference Specification Book • September 2013 135

DTC Chart

Adjustment voltage (IP) > 1.5 V
P0133

DTC

Error Message

Malfunction Criteria and
Threshold Value

P0139

HO2S Circuit Response and
Performance (Bank 1, Sensor
2)

• Transient Time > 0.4 s
• Response Time > 1.5 s

P0140

HO2S Circuit Signal Activity
Checking (Bank 2, Sensor 1)

• Signal voltage 401 - 499 mV
• Exhaust gas temp. > 600° C
and
• HO2S rear internal resistance
> 20K Ω

P0141

HO2S Heater Circuit Out of
Range (Bank 1, Sensor 2)

Heater resistance 0.48 - 23K
Ω (This depends on catalyst
temp.)

P0150

HO2S Heater Circuit Out of
Range (Bank 2, Sensor 1)

• Sensor element temperature
< 640° C
or
• Heater resistance > 950 Ω

P0151

HO2S Circuit Short to Ground
Voltage (Bank 2, Sensor 1)

Virtual mass (VM) voltage < 2 V
Nernst voltage (UN) < 1.75 V
Adjustment voltage (IA) < 0.3 V
Adjustment voltage (IP) < 0.3 V

P0152

HO2S Circuit Short to Battery
Voltage (Bank 2, Sensor 1)

Virtual mass (VM) voltage > 3 V
Nernst voltage (UN) > 4 V
Adjustment voltage (IA) > 1.5 V
Adjustment voltage (IP) > 1.5 V

P0153

O2S Circuit response rate
monitoring, area ratio
(Bank 2, Sensor 1)

• Lower value of both area
ratios R2L and L2L in case of
symmetric fault < 0.3[-]
• Lower value of both counters
for area ratio R2L and L2R
≥ 5[-]

P0155

HO2S Heater CircuitOut of
Range (Bank 2, Sensor 1)

Sensor element temperature
< 720° C

P0156

HO2S Circuit Heater Coupling
Check (Bank 2, Sensor 2)

• Delta O2S signal rear > 2 V
• Number of heater coupling
faults > 4

P0157

HO2S Circuit Signal Check
(Bank 2, Sensor 2)

Signal voltage < 60 mV

P0158

HO2S Circuit Short to Battery
Voltage (Bank 1, Sensor 2)

Signal voltage > 1.08 V

P0159

HO2S Circuit Response and
Performance (Bank 2, Sensor
2)

• Transient Time > 0.4 s
• Response Time > 1.5 s

136 Audi R8/Spyder Quick Reference Specification Book • September 2013

Error Message

Malfunction Criteria and
Threshold Value

P0160

HO2S Circuit Signal Activity
Checking (Bank 2, Sensor 2)

• Signal voltage 401 - 499 mV
• Exhaust gas temp. > 600° C
• HO2S rear internal resistance
> 20KΩ

P0161

HO2S Heater Circuit Out of
Range (Bank 2, Sensor 2)

Heater resistance 0.48 - 23K
Ω (This depends on catalyst
temp.)

P0171

Fuel Trim System to Lean
(Bank 1)

Additive:
• Adaptive value < 5%
Multiplicative:
• Adaptive value > 20 [%]

P0172

Fuel Trim System to Rich
(Bank 1)

Additive:
• Adaptive value < 5%
Multiplicative:
• Adaptive value < -20 [%]

P0174

Fuel Trim System to Lean
(Bank 2)

Additive:
• Adaptive value < 5%
Multiplicative:
• Adaptive value > 20 [%]

P0175

Fuel Trim System to Rich
(Bank 2)

Additive:
• Adaptive value < 5%
Multiplicative:
• Adaptive value < -20 [%]

P018A

Fuel Pressure Sensor 2 Circuit Signal voltage > 4.8 V
Short to Battery Voltage or
Open

P018B

Fuel Pressure Sensor 2
Signal Range

Rail pressure > 13.5 MPa

P018C

Fuel Pressure Sensor 2
Circuit Short to Ground

Signal voltage < 0.2 V

P0190

Fuel Pressure Sensor Circuit
Short to Battery Voltage or
Open

Signal voltage > 4.8 V

P0191

Fuel Pressure Sensor Signal
Range

Rail pressure > 13.5 mPa

P0192

Fuel Rail Pressure Sensor
Circuit Short to Ground

Signal voltage < 0.2 V

P0201

Fuel Injector Circuit - Low
Side Cylinder #1 Open

• Signal current < 2.1 A
Booster Timer Check
• Low side signal current < 4 A
• Booster time > 6 ms

Audi R8/Spyder Quick Reference Specification Book • September 2013 137

DTC Chart

DTC

DTC

Error Message

Malfunction Criteria and
Threshold Value

P0202

Fuel Injector Circuit - Low
Side Cylinder #2 Open

• Signal current < 2.1 A
Booster Timer Check
• Low side signal current < 4 A
• Booster time > 6 ms

P0203

Fuel Injector Circuit - Low
Side Cylinder #3 Open

• Signal current < 2.1 A
Booster Timer Check
• Low side signal current < 4 A
• Booster time > 6 ms

P0204

Fuel Injector Circuit - Low
Side Cylinder #4 Open

• Signal current < 2.1 A
Booster Timer Check
• Low side signal current < 4 A
• Booster time > 6 ms

P0205

Fuel Injector Circuit - Low
Side Cylinder #5 Open

• Signal current < 2.1 A
Booster Timer Check
• Low side signal current < 4 A
• Booster time > 6 ms

P0206

Fuel Injector Circuit - Low
Side Cylinder #6 Open

• Signal current < 2.1 A
Booster Timer Check
• Low side signal current < 4 A
• Booster time > 6 ms

P0207

Fuel Injector Circuit - Low
Side Cylinder #7 Open

• Signal current < 2.1 A
Booster Timer Check
• Low side signal current < 4 A
• Booster time > 6 ms

P0208

Fuel Injector Circuit - Low
Side Cylinder #8 Open

• Signal current < 2.1 A
Booster Timer Check
• Low side signal current < 4 A
• Booster time > 6 ms

P0209

Fuel Injector Circuit - Low
Side Cylinder #9 Open

• Signal current < 2.1 A
Booster Timer Check
• Low side signal current < 4 A
• Booster time > 6 ms

P0210

Fuel Injector Circuit - Low
Side Cylinder #10 Open

• Signal current < 2.1 A
Booster Timer Check
• Low side signal current < 4 A
• Booster time > 6 ms

P0221

Throttle Position SensorCircuit • TPS - TPS 2 > 6.3%
(Bank 1, Sensor 2) Rationality • Actual TPS 1 - calc. value >
Check
actual TPS 2 - calc. value 1 %
• Actual TPS 1 - calc. value
> 9%

138 Audi R8/Spyder Quick Reference Specification Book • September 2013

Error Message

Malfunction Criteria and
Threshold Value