DTC Chart
VW Golf & GTI Quick Reference Specication Book • September 2012 221
DTC Error Message Malfunction Criteria and
Threshold Value
P2127 Throttle/Pedal Position Sensor
E Circuit Low Input
Sensor 2 voltage < 0.27 V
P2128 Throttle/Pedal Position Sensor
D/E Circuit Voltage Correlation
Sensor 2 voltage > 2.43 V
P2138 Throttle/Pedal Position Sensor
D/E Circuit Voltage Correlation
Voltage drift monitoring:
• Throttle Position Sensor 1
voltage and APP Sensor 2
voltage = 13 - 20%
P2183 Engine Coolant Temperature
Sensor 2 Circuit Range/
Performance
Temperature difference to
at least 2 other temperature
sensors at startup > 20 °K
P2184 Engine Coolant Temperature
Sensor 2 Circuit Low
ECT signal voltage < 0.15 V
P2185 Engine Coolant Temperature
Sensor 2 Circuit High
ECT signal voltage > 3.25 V
P2195 O2 Sensor Signal Stuck Lean
Bank 1 Sensor 1
Deviation to oxygen
concentration > 0.046
P2196 O2 Sensor Signal Stuck Rich
Bank 1 Sensor 1
Deviation to oxygen
concentration < 0.063
P2237 O2 Sensor Positive Current
Control Circuit Bank 1 Sensor
1 Open
Measured oxygen
concentration < 0.005
P2243 O2 Sensor Reference Voltage
Circuit Bank 1 Sensor 1 Open
• O2S internal resistance >
1104Ω
• Oxygen sensor raw signal >
3 V
P2251 O2 Sensor Negative Current
Control Circuit Bank 1 Sensor
1 open
• O2S internal resistance >
1104 Ω
• Oxygen sensor raw signal <
1.4 V or > 1.6 V
P2270 O2 Sensor Signal Stuck Lean;
Bank 1 Sensor 2
Deviation to oxygen
concentration during fuel cutoff
> 0.046 OR deviation between
measured and modeled oxygen
concentration > 4.8% vol.
P2271 O2 Sensor Signal Stuck Rich;
Bank 1 Sensor 2
Deviation to oxygen
concentration during fuel cutoff
< -0.063
P2279 Intake Air System Leak Deviation between actual
airow and modeled mass air
ow < 0.7
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