246 VW Golf & GTI Quick Reference Specication Book • September 2012
DTC Error Message Malfunction Criteria and
Threshold Value
P2243 O2 Sensor Reference Voltage
Circuit Open (Bank 1,
Sensor 1)
• O2S signal front < 0.30 V and
Internal resistance
> 1000 Ohms
• O2S signal front > 3.25 V and
Internal resistance
> 1000 Ohms
P2270 O2 Sensor Signal Stuck Lean
(Bank 1, Sensor 2)
• O2S signal rear < 0.63 - 0.64 V
• Enrichment after stuck lean
27.90%
P2271 O2 Sensor Signal Stuck Rich
(Bank 1, Sensor 2)
• O2S signal rear > 0.63 - 0.64 V
• Enrichment after stuck rich
14.99%
P2279 Intake Air System Leak • Threshold to detect a defective
system > 1.33 - 1.60
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
• Signal voltage 1.40 - 3.20 V
or
• Signal pattern incorrect
P2295 Fuel Pressure Regulator 2
Control Circuit Low Short to
Ground
Signal voltage < 1.40 - 3.20 V
P2296 Fuel Pressure Regulator 2
Control Circuit High
Signal voltage > 3.20 V
Additional Emissions Regulations
DTC Error Message Malfunction Criteria and
Threshold Value
P2400 Evaporative Emission System
Leak Detection Pump Control
Circuit Open
Signal voltage > 4.7 - 5.4 V
P2401 Evaporative Emission System
Leak Detection Pump Control
Circuit Low
Signal voltage > 2.74 - 3.26 V
P2402 Evaporative Emission System
Leak Detection Pump Control
Circuit High
Signal voltage at LDP current
measuring resistor > 4.00 to
1.80 V
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