Check installation condition of G-sensor. If NG, repair as necessary and go to "Verification vehicle Repair" procedure.
Check damage of rotor teeth or wheel bearing. If NG, repair as necessary and go to "Verification vehicle Repair" procedure.
Ignition "ON" & Engine "OFF".
Measure waveform between signal terminal of the G sensor harness connector and chassis ground with osciloscope.
Specification : Approx. 2.5V
0.3V ~ 4.7V (acceleration or deceleration)
Is the measured waveform within specifications?
 | ▶ Fault is intermittent caused by poor connection in G sensor harness and/or HECU's connector. Go to "Verification of Vehicle Repair" procedure. |
 | ▶ Substitute with a known-good G sensor and check for proper operation. If problem is corrected, replace G sensor and then go to "Verification of Vehicle Repair" procedure. |
