Pinpoint Test A: Preliminary Tests

1. A1: PRELIMINARY TEST 1 
   1. Check that the fuel gauge indicates that there is some fuel in the fuel tank. Add fuel if necessary
   2. Using the manufacturer approved diagnostic system, check datalogger signals - Fuel Level Sensor pump/active/A (0xD927) - and - Fuel Level Sensor eject/passive/B (0xD927)
   3. Make a note of the values of each sensor

   Are both datalogger signals between 0.37V and 3.02V?

   Yes  : GO to  A2.

   No  : GO to PINPOINT TEST B .

2. A2: PRELIMINARY TEST 2 
   1. Re-configure the Instrument Cluster (IC) with the latest level software

   Is the fuel gauge reading correctly now?

   Yes  : Repair complete

   No  : GO to  A3.

3. A3: PRELIMINARY TEST 3 
   1. Using the manufacturer approved diagnostic system, check datalogger signals - Fuel Level Sensor pump/active/A (0xD927) - and - Fuel Level Sensor eject/passive/B (0xD927).

   Is the passive fuel level value greater than the active fuel level value?

   Yes  : GO to  A4.

   No  : GO to PINPOINT TEST B .

4. A4: PRELIMINARY TEST 4 

1. Remove the fuel pump module flange (to allow access to the crossover pipe inside the fuel tank). (Refer to: LOW PRESSURE FUEL PUMP ASSEMBLY (G2767372) )
2. Check the integrity of the crossover pipe, disconnected/damaged/kinked passive suction pipe, passive jet pump blocked, pickup filter mesh blocked

Is there a fault with the crossover pipe, passive suction pipe, jet pump and pickup filter mesh?

Yes  : Repair as necessary

No  : GO to PINPOINT TEST B .