Component Inspection

Component Inspection

1. Ignition "ON" & Engine "OFF".
2. Put and release the brake pedal several times.
3. Measure voltage between terminal "1" of the pressure sensor harness connector and chassis ground.
A. Specification: 0.2 ± 0.1V ~ 4.8 ± 0.1V




4. Is the measured voltage, waveform within specifications ?
YES
1) Fault is intermittent caused by poor connection in pressure sensor harness and/or HECU's connector or was repaired and HECU memory was not cleared. Go to "Verification of vehicle Repair" procedure.
NO
1) Substitute with a known-good pressure sensor and check for proper operation. If problem is corrected, replace pressure sensor and then go to "Verification of Vehicle Repair" procedure.