DTC Chart
VW Golf & GTI Quick Reference Specication Book • September 2012 243
DTC Error Message Malfunction Criteria and
Threshold Value
P0643 Sensor Reference Voltage A
Circuit High
Signal voltage > 5 to 5.4 V
P0651 Sensor Reference Voltage B
Circuit
Signal voltage deviation > +/-
0.3 V
P0652 Sensor Reference Voltage B
Circuit Low
Signal voltage < 4.6 - 5.0 V
P0653 Sensor Reference Voltage B
Circuit High
Signal voltage > 5 to 5.4 V
P0657 Actuator Supply Voltage A
Circuit Open
Signal voltage > 4.4 - 5.6 V
P0658 Actuator Supply Voltage A
Circuit Low
Signal voltage < 2.15 - 3.25 V
P0659 Actuator Supply Voltage A
Circuit High
Signal current > 1.1 A
P0685 ECM Power Relay Control
Circuit Open
Control voltage 2.6 to 3.7 V and
Sense circuit voltage < 6 V
P0686 ECM Power Relay Control
Circuit Low
Control voltage 2.6 to 3.7 V and
Sense circuit voltage > 6 V
P0687 ECM Power Relay Control
Circuit High
Signal current > 1.4 to 0.7 A and
Sense circuit voltage < 6 V
P0688 ECM Power Relay Sense
Circuit Open
• Sense voltage > 3 V with main
relay commanded on
• Sense voltage < 3 V with main
relay commanded off
P0697 Sensor Reference Voltage C
Circuit Open
Signal voltage deviation
> ± 0.3 V
P0698 Sensor Reference Voltage C
Circuit Low
Signal voltage < 4.6 - 5.0 V
P0699 Sensor Reference Voltage C
Circuit High
Signal voltage > 5 to 5.4 V
U0001 High Speed CAN
Communication Bus
Bus Off failure
U0002 High Speed CAN
Communication Bus
Performance
Global Time Out failure
U0121 Lost Communication With
Anti-Lock Brake System
(ABS) Control Module
CAN communication with ABS,
time out
U0146 Lost Communication With
Gateway A
CAN communication with
gateway, time out
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