Passat Sedan 4Motion V6-3.6L (BLV) (2007)
Throttle Position Sensor: All Technical Service Bulletins
Electrical - EPC/MIL ON/DTC's P0121/P0221 Set
01 07 67
Oct. 26, 2007
2016089
Vehicle Information
Condition
EPC Warning Light On and/or Throttle Body DTC P0121 / P0221 Stored in ECM Fault Memory Electronic Power Control (EPC) and/or Malfunction
Indicator Lamp (MIL) warning lamp(s) illuminated with DTCs set.
Technical Background
Routing of engine electrical harness too loose, producing intermittent connection at Throttle Position (TP) Sensor -G79-/Accelerator Pedal Position
Sensor 2 -G185- connector.
Typical DTCs set:
^
00289 / P0121, Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance
^
00545 / P0221, Throttle/Pedal Position Sensor/Switch "B" Circuit Range/Performance
Production Solution
Revised engine wiring harness routing around the throttle valve control module and improved throttle valve beginning with VIN:
^
3C_7E115305
^
3C_7P087974
Service
In case of a malfunction, check wiring harness routing around throttle valve control module. If necessary, replace all pins in 6-pin connector on throttle
valve control module as follows:
Remove air filter to expose wiring harness around throttle body control module. Verify that the harness requires modification. Harness routing around
throttle body control module as shown in illustration A -below- will require modification.
Tip:
Wires with yellow insulation internal to conduit are an indication that harness has already been modified.
Modification Procedure
Remove and discard the following components:
^
Corrugated tube T-connector -1-.
^
Corrugated tube -2-.
^
Electrical tape -3-.
^
Disconnect connector and remove all terminals with terminal removal tool VAS1978/7.
Assemble and install six jumper wires.