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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1145 (Abs Guided Routine Testing) >> Pinpoint Tests >> Pinpoint Test CC: Aspirator Valve Control Circuit Faults >> Visual Inspection and Diagnostic Pre-checks

Visual Inspection and Diagnostic Pre-checks

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CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
Fig 1: Vacuum Solenoid Valve (VSV) Connector End View (C1795)
G12751592Courtesy of FORD MOTOR CO.
Harness Side

Circuit Pin
B+ (Battery Positive Voltage) - CBB08 2 (GRAY/YELLOW)
VSV (Vacuum Solenoid Valve) - RE465 1 (GREEN/VIOLET)
Fig 2: Powertrain Control Module-B (PCM-B) Connector End View (C1915B)
G12751593Courtesy of FORD MOTOR CO.
Harness Side

Circuit Pin
VSV (Vacuum Solenoid Valve) - CE465 58 (YELLOW/GRAY)
  1. CC1: CHECK THE PCM DTCS 
    • Ignition ON, engine OFF.
    • Carry out the PCM KOEO self-test.
    • Is DTC P103D present? 
    Yes No
    Go to  CC2. For DTC P103E, Go to  CC4.
    For DTC P103C, Go to  CC5.
    For all others,
    No fault found.
    REFER to ELECTRONIC ENGINE CONTROLS - 3.5L ECOBOOST (272KW/370PS) .
  2. CC2: CHECK FOR VOLTAGE TO THE ASPIRATOR VALVE 
    • Ignition OFF.
    • VSV connector disconnected. (C1795)
    • Ignition ON, engine OFF.
    • Measure the voltage between:
      (+) VSV (C1795) Connector, Harness Side (-)
      B+ - CBB08 (GRAY/YELLOW) - Pin 2 Ground
    • Is the voltage greater than 11 V? 
    Yes No
    Go to  CC3. VERIFY BJB fuse 36 (10A) is OK.
    If the fuse is OK, REPAIR the circuit.
    If the fuse is OK, REFER to the OEM WIRING DIAGRAMS to identify the cause of the circuit short.
  3. CC3: CHECK THE ASPIRATOR VALVE CONTROL CIRCUIT FOR A SHORT TO GROUND 
    • Ignition OFF.
    • Measure the resistance between:
      (+) VSV (C1795) Connector, Harness Side (-)
      VSV - RE465 (GREEN/VIOLET) - Pin 1 Ground
    • Is the resistance greater than 10 kOhm? 
    Yes No
    Go to  CC4. REPAIR the circuit.
  4. CC4: CHECK THE ASPIRATOR VALVE CONTROL CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • VSV connector disconnected. (C1795) (if not previously disconnected)
    • PCM_B connector disconnected. (C1915B)
    • Measure the voltage between:
      (+) VSV (C1795) Connector, Harness Side (-)
      VSV - RE465 (GREEN/VIOLET) - Pin 1 Ground
    • Is the voltage greater than 0 V? 
    Yes No
    REPAIR the circuit. Go to  CC5.
  5. CC5: CHECK THE ASPIRATOR VALVE CONTROL CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • VSV connector disconnected. (C1795) (if not previously disconnected)
    • PCM_B connector disconnected. (C1915B) (if not previously disconnected)
    • Measure the resistance between:
      (+) VSV (C1795) Connector, Harness Side (-) PCM_B (C1915B) Connector, Harness Side
      VSV - RE465 (GREEN/VIOLET) - Pin 1 VSV - CE465 - Pin 58
    • Is the resistance greater than 10 kOhm? 
    Yes No
    Go to  CC6. REPAIR the circuit.
  6. CC6: VERIFY ALL WIRING CONNECTIONS 
    • Using a good light source, inspect all disconnected electrical connectors for the following:
      • corrosion - install new connector or terminal and clean the module pins
      • damaged or bent pins - install new terminals or pins
      • pushed-out pins - install new pins as necessary
      • spread terminals - install new terminals as necessary
    • Are the connectors free of corrosion, damaged pins, bent pins, pushed-out pins and spread terminals? 
    Yes No
    Go to  CC7. REPAIR the connector or terminals.
    REFER to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
  7. CC7: VERIFY SYSTEM OPERATION 
    • PCM_B connector connected. (C1915B) Make sure the connector seats and latches correctly.
    • VSV connector connected. (C1795) Make sure the connector seats and latches correctly.
    • Ignition ON, engine OFF.
    • Clear the PCM DTCs.
    • Start the engine.
    • Press the brake pedal as many times as necessary to exhaust the vacuum in the brake booster.
    • Allow the brake booster vacuum to recharge.
    • Ignition OFF.
    • Ignition ON, engine OFF.
    • Carry out the PCM KOEO self-test.
    • Retrieve and record the PCM DTCs.
    • Is DTC P103C, P103D or P103E present? 
    Yes No
    CHECK OASIS for any service articles: TSB, GSB, SSM or FSA.
    If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions.
    If no service articles address this concern, INSTALL a new vacuum hose and aspirator valve assembly.    		 The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
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