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Home >> Volkswagen >> 2012 >> Passat TDI SEL >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> 2.0L - Generic Scan Tool - Engine Code: CKRA >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Fuel Pressure Sensor, Checking >> Test Procedure
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Test Procedure

-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK 

Start diagnosis

Make sure the engine is at room temperature.

-- Disconnect the Fuel Pressure Sensor -G247- -17- electrical harness connector.

Fig 1: Identifying Fuel Rail And Injector Overview
GWWA23-10351Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Switch the ignition ON.

-- Using a Multimeter, Check the Fuel Pressure Sensor -G247- electrical harness connector terminals 1 to 3 for voltage.

Specified value: about 5.0 V

-- Switch the ignition Off.

Continue test according to the following table:

Value Cause Test
If the specified value was not obtained: Open or shorted circuit Checking Wiring 
If the specified value was obtained: Check reference signal circuit Checking Activation