DTC Chart
VW Golf & GTI Quick Reference Specication Book • September 2012 225
DTC Error Message Malfunction Criteria and
Threshold Value
P0402 Exhaust Gas Recirculation
Excessive Flow Detected
Control deviation > limit from
map (engine speed, desired
airow)
P0403 Exhaust Gas Recirculation
Circuit
Valve stuck open > 17% or
stuck closed < 17%
P0405 Exhaust Gas Recirculation
Sensor Circuit Low
Position sensor signal range
check low.
P0406 Exhaust Gas Recirculation
Sensor Circuit High
Position sensor signal range
check high.
P0420 Catalyst System Bank 1
Efciency Below Threshold
HC conversion rate < 0.3
P045A Exhaust Gas Recirculation “B”
Control Circuit
Diagnostic signal from output
driver
P045B Exhaust Gas Recirculation
“B” Control Circuit Range/
Performance
Position sensor signal > 1 V or
< 0.4 V
P045C Exhaust Gas Recirculation “B”
Control Circuit Low
Diagnostic signal from output
driver
P045D Exhaust Gas Recirculation “B”
Control Circuit High
Diagnostic signal from output
driver
P045E Exhaust Gas Recirculation “B”
Control Stuck Open
Comparison of actual and
desired position signal
• Control deviation > 12%
P045F Exhaust Gas Recirculation “B”
Control Stuck Closed
Comparison of actual and
desired position signal
• Control deviation < -12%
P046C Exhaust Gas Recirculation
Sensor “A” Circuit Range/
Performance
Position sensor signal > 1 V or
< 0.4 V
P047C Exhaust Pressure Sensor “B”
Low
Pressure sensor voltage < 0.2
V
P047D Exhaust Pressure Sensor “B”
High
Pressure sensor voltage > 4.9
V
P047F Exhaust Pressure Control
Valve “A” Stuck Open
Control valve stuck open -
position sensor < 10% when
commanded closed
P0470 Exhaust Pressure Sensor “A” Sensor voltage > 4.9
P0471 Exhaust Pressure Sensor “A”
Range/Performance
Sensor voltage > 4.9
P0472 Exhaust Pressure Sensor A
Low
Sensor voltage < 0.2 V