Pinpoint Test J: Bolster Deflate Tests
- J1: BOLSTER DEFLATE TEST 1 NOTE: The battery support unit must be connected during this test to ensure that the power supply is stable.NOTE:
- Circuit reference - VBATT -
- The bolster deflate circuit current specification is 0.50A ± 10%.
- Connect an inductive ammeter to the seat switchpack power circuit
- Set the ignition to on
- Operate the seat switchpack bolster deflate switch
Is the measured current less than specification?
Yes: GO to J2.
No: Check the bolster air cell hoses for blockages
- J2: BOLSTER DEFLATE TEST 2 NOTE: Do not disconnect the electrical connector during this step; the seat switchpack is removed for access to the wiring harness only.
- Refer to the relevant article of the repair information and remove the seat switchpack
- Set a multimeter to measure voltage
- Using the multimeter, measure and record the battery voltage (reference voltage)NOTE: Circuit reference - BOLSTER DEF/GND -
- Connect the multimeter across the seat switchpack bolster deflate terminal and the ground terminal
- Set the ignition to on
- Operate the seat switchpack bolster deflate switch
Is the measured voltage less than battery voltage?
Yes: GO to PINPOINT TEST A .
No: Refer to the electrical circuit diagrams and check the bolster deflate circuit for short circuit to ground, short circuit to power, open circuit, high resistance