February 2014

DTC

Error Message

Malfunction Criteria and
Threshold Value

Fuel Injector Group A Supply
Voltage Circuit Open or
Short to Ground or Short to
Battery Plus

• High side signal current,
< 2.60 A
or
• High side signal current
> 14.90 A

P2149

Fuel Injector Group B Supply
Voltage Circuit Open or
Short to Ground or Short to
Battery plus

• High side signal current,
< 2.60 A
or
• High side signal current
> 14.90 A

P2152

Fuel Injector Group “C” Supply
Voltage Circuit Open or
Short to Ground or Short to
Battery plus

• High side signal current,
< 2.30 A
or
• High side signal current
> 18.60 A

P2155

Fuel Injector Group “D” Supply
Voltage Circuit Open or
Short to Ground or Short to
Battery plus

• High side signal current,
< 2.60 A
or
• High side signal current
> 14.90 A

P2177

Fuel System Too Lean Off Idle, Fuel adaptive value > 30%
(Bank 1)

P2178

Fuel System Too Rich Off Idle,
(Bank 1)

Fuel adaptive value < -30%

P2179

Fuel System Too lean off idle,
(Bank 2)

Fuel adaptive value > 30%

P2180

Fuel System Too rich off idle,
(Bank 2)

Fuel adaptive value < -30%

P2181

Cooling System Performance

Cooling system temperature too
low after a sufficient mass air
flow integral < 61.0 to 70.0° C

P2184

Engine Coolant Temperature
Sensor 2 Circuit Shorted to
Ground

Signal voltage < 0.20 V

P2185

Engine Coolant Temperature
Sensor 2 Circuit Open or
Shorted to Battery Voltage

Signal voltage > 4.95 V

P2187

Fuel System Too Lean at Idle,
(Bank 1)

Fuel adaptive value > 6%

P2188

Fuel System Too Rich at Idle,
(Bank 1)

Fuel adaptive value < -6%

VW Passat Quick Reference Specification Book

•

February 2014

DTC Chart

P2146

87

DTC

Error Message

P2189

Fuel System Too Lean at Idle,
(Bank 2)

Fuel adaptive value > 6%

P2190

Fuel System Too Rich at Idle,
(Bank 2)

Fuel adaptive value < -6%

P2195

O2 Sensor Signal Stuck Lean - Delta lambda of 2nd lambda
(Bank 1, Sensor 1)
control loop > 0.059

P2196

O2 Sensor Signal Stuck Rich
(Bank 1, Sensor 1)

Delta lambda of 2nd lambda
control loop < -0.059

P2197

O2 Sensor Signal Stuck Lean
(Bank 2 Sensor 1)

Delta lambda of 2nd lambda
control loop > 0.059

P2198

O2 Sensor Signal Stuck Rich
(Bank 2 Sensor 1)

Delta lambda of 2nd lambda
control loop < -0.059

P2237

O2 Sensor Positive Current
Control Circuit / Open (Bank 1,
Sensor 1)

• O2S signal front 1.49 to
1.51 V
and
• Delta lambda controller > 0.07
or
• Lambda control at min or max
limit
• O2S signal front 1.49 to
1.51 V
and
• No reaction on commanded
stepwise change of lambda
setpoint 1

P2240

O2 Sensor Positive Current
Control Circuit Bank 2 Sensor
1 Open

• O2S signal front 1.49 - 1.51 V
• Delta lambda controller > 0.07

P2243

O2 Sensor Reference Voltage
Circuit/Open (Bank 1,
Sensor 1)

• O2S signal front < 0.2 to >
4.70 V
and
• Internal resistance > 950.0 O

P2247

O2 Sensor Reference Voltage
Circuit Open (Bank 2 Sensor
1)

• O2S signal front < 0.2 to
> 4.70 V
and
• Internal resistance > 950.0 O

P2251

O2 Sensor Negative Current
Control CircuitOpen (Bank 1
Sensor 1)

• O2S signal front 1.47 - 1.52 V
and
• Internal resistance > 950
ohms

88

Malfunction Criteria and
Threshold Value

VW Passat Quick Reference Specification Book

•

February 2014

DTC

Error Message

Malfunction Criteria and
Threshold Value

O2 Sensor Negative Current
Control Circuit Open (Bank 2,
Sensor 1)

• O2S signal front 1.47 - 1.52 V
and
• Internal resistance > 950
ohms

P2270

O2 Sensor Signal Stuck Lean
(Bank 1 Sensor 2)

Sensor voltage of < 0.75 V

P2271

O2 Sensor Signal Stuck Rich
(Bank 1, Sensor 2)

• Sensor voltage of ≥ 0.15 V

P2272

O2 Sensor Signal Stuck Lean
(Bank 2 Sensor 2)

• Sensor voltage of < 0.75 V

P2273

O2 Sensor Signal Stuck Rich
(Bank 2, Sensor 2)

• Sensor voltage of ≥ 0.15 V

P2279

Intake Air System Leak
Rationality

• Threshold to detect a
defective system > 2.10
and
• Ratio of the tie system
defective during the
measurement window to
the whole duration of the
measurement window > 0.80

P2293

Fuel Pressure Regulator 2
Performance

Difference between target
pressure vs actual pressure:
> 1.50 MPa or < -1.50 MPa

P2294

Fuel Pressure Regulator 2
Control Circuit Open Circuit or

• Signal voltage 1.40 - 3.20 V

Rationality Check

Signal pattern incorrect

P2295

Fuel Pressure Regulator 2
Signal voltage < 1.40 V
Control Circuit Short to Ground

P2296

Fuel Pressure Regulator 2
Control Circuit Open or Short
to Battery Voltage

DTC Chart

P2254

Signal voltage > 3.20 V

Additional Emissions Regulations
DTC

Error Message

P2400

Evaporative Emission System
Leak Detection Pump Control
Circuit/Open

Malfunction Criteria and
Threshold Value
Signal voltage > 4.7 - 5.4 V

VW Passat Quick Reference Specification Book

•

February 2014

89

DTC

Error Message

Malfunction Criteria and
Threshold Value

P2401

Evaporative System Leak
Signal voltage < 2.74 to 3.26 V
Detection Pump Control Circuit
Shorted to Ground

P2402

Evaporative System Leak
Signal current > 4.00 to 1.80 V
Detection Pump Control Circuit
Open or Shorted to Battery

P2403

Evaporative Emission System
Leak Detection Pump Sense
Circuit/Open

Low signal voltage > 0.50 Sec.

P2404

Evaporative Emission System
Leak Detection Pump Sense
Circuit Range/Performance

• High signal voltage > 12 Sec.
• Number of checks = 30
• Cumulative time of high signal
voltage during pumping
> 20 Sec.

P2407

EVAP Leak Detection Pump
Signal Check

During Engine Off:
• Fluctuation of EVAP pump
current during reference
measurement > 2.0 mA
or
• Drop of EVAP pump current
during pump phase > 6.0 mA
for time ≥ 3.0 Sec.
During Engine On:
• Fluctuation of EVAP pump
current during reference
measurement > 2.0 mA
or
• Drop of EVAP pump current
during pump phase > 6.0 mA
for time ≥ 3.0 Sec.

P240A

EVAP Leak Detection Pump
Heater Open Circuit

Signal voltage > 4.7 to 5.40 V

P240B

EVAP Leak Detection Pump
Heater Short to Ground

Signal voltage < 2.74 to 3.26 V

P240C

EVAP Leak Detection Pump
Heater Short to Battery Plus

Signal current > 2.20 to 4.00 A

P2414

O2 Sensor Exhaust Sample
Error (Bank 1, Sensor 1)

Threshold 1
• Signal voltage 3.70 - 4.81 V
Threshold 2
• Signal voltage 2.51 - 3.00 V
• Depending on gain factor,
that actual is used for sensor
characteristic, the threshold is
switched

90

VW Passat Quick Reference Specification Book

•

February 2014

Error Message

Malfunction Criteria and
Threshold Value

P2415

02 Sensor Exhaust Sample
Error, (Bank 2, Sensor 1)

Threshold 1
• Signal voltage 3.70 - 4.81 V
Threshold 2
• Signal voltage 2.51 - 3.00 V
• Depending on gain factor,
that actual is used for sensor
characteristic, the threshold is
switched

P2450

EVAP Leak Detection Pump
Signal Check

During Engine Off:
• EVAP pump current
difference between reference
measurement to idle ≤ 3.0 mA
During Engine On:
• EVAP pump current
difference between reference
measurement to idle ≤ 3.0 mA

P2539

Low Pressure Fuel System
Sensor Circuit Open Circuit or
Short to Battery

Signal voltage > 4.80 V

P2541

Low Pressure Fuel System
Signal voltage < 0.20 V
Sensor Circuit Short to Ground

P2600

Coolant Pump Control Circuit/
Open

Signal voltage 4.50 - 5.50 V

P2602

Coolant Pump Control Circuit
Low

Signal voltage < 3.0 V

P2603

Coolant Pump Control Circuit
High

Signal current 0.60 - 1.20 A

P2626

O2 Sensor Pumping Current
Trim Circuit/Open (Bank 1
Sensor 1)

O2S signal front > 4.81 V

P2629

O2 Sensor Pumping Current
Trim Circuit/Open Bank 2,
Sensor 1

O2S signal front > 4.81 V

VW Passat Quick Reference Specification Book

•

February 2014

91

DTC Chart

DTC

Volkswagen Group of America works constantly to develop and improve its
products. We must therefore reserve the right to change or update any part of
this technical manual at any time. No legal commitment can therefore be derived
from the information, illustrations or descriptions in this manual.
The texts, illustrations and standards in this manual are based on the
information available at the time of printing. No part of this manual may
be reprinted, reproduced or translated without the written permission of
Volkswagen Group of America.
All rights under the copyright laws are expressly reserved by Volkswagen Group
of America. Subject to alteration and amendment.
Printed in the United States of America
© 2014 Volkswagen Group of America, Inc.

February 2014