Pinpoint Test I: Memory Seat Bolster Inflate Tests

TEST CONDITIONS 

DETAILS/RESULTS/ACTIONS 

1. I1: MEMORY SEAT BOLSTER INFLATE TEST 1 
   1. Using the Jaguar Land Rover approved diagnostic equipment, perform routine - On Demand Self Test
   2. Using the Jaguar Land Rover approved diagnostic equipment, check the relevant seat module for related DTCs and refer to the relevant DTC index

   Are any relevant DTCs set?

   • Yes  : Perform the relevant corrective action
   • No  : GO to I2.
2. I2: MEMORY SEAT BOLSTER INFLATE TEST 2 
   NOTE:

   • Circuit reference - VBATT -
   • The bolster inflate circuit current specification is 1.05A ± 10%.
   1. Connect an inductive ammeter to the seat switchpack power circuit
   2. Set the ignition to on
   3. Operate the seat switchpack bolster inflate switch

   Is the measured current less than specification?

   • Yes  : GO to I3.
   • No  : Check the lumbar/bolster pump hose and the bolster air cell hoses for blockages/leaks
3. I3: MEMORY SEAT BOLSTER INFLATE TEST 3 
   NOTE: Do not disconnect the electrical connector during this step; the seat switchpack is removed for access to the wiring harness only.
   1. Refer to the relevant section of the service information and remove the seat switchpack
   2. Set a multimeter to measure voltage
   3. Using the multimeter, measure and record the battery voltage (reference voltage)
      NOTE: Circuit reference - BOLSTER INF/GND -
   4. Connect the multimeter across the seat switchpack bolster inflate terminal and the ground terminal
   5. Set the ignition to on
   6. Operate the seat switchpack bolster inflate switch

   Is the measured voltage less than battery voltage?

   • Yes  : GO to Pinpoint Test A .
   • No  : Refer to the applicable System Wiring Diagram(s) and check the bolster inflate circuit for short circuit to ground, short circuit to power, open circuit, high resistance
     NOTE: Some DTCs can only be set if the fault is detected during the On Demand Self Test routine.
     NOTE: The battery support unit must be connected during this test to ensure that the power supply is stable.