Test A: Height Sensor Signal Short To Battery

Check Height Sensor Connections

Disconnect and inspect height sensor connectors for corrosion, damaged pins or wiring. Repair or replace as necessary. Go to next step.

Check For Short To Power

Disconnect SARC module connectors. Disconnect suspect height sensor. Check voltage between circuits 423 (Purple/Light Green), 425 (Brown/Black), 427 (Pink/Black), 428 (Orange/Black) and ground. See Figure . If any circuit has .5 volt or more, repair short to power. Repe at self test. See SELF TEST . If voltage is less than .5 volt on all circuits, go to next step.

Check For Short To Sensor Power

Disconnect SARC module connectors. Disconnect suspect height sensor. Check resistance between circuit 426 (Red/Black) and circuits 423 (Purple/Light Green) and 425 (Brown/Black). If resistance is less than 10,000 ohms, repair short of sensor signal wiring. Go to next step.

Check Height Sensor Voltage

Reconnect SARC module connectors. Disconnect suspect sensor. Using NGS tester, turn on sensor power using ACTIVE COMMAND MODE test, SUSPENSION DIAGNOSTIC CONTROL, HT SENSOR POWER: ON. Check voltage between circuit 423 (Purple/Light Green), 425 (Brown/Black), 427 (Pink/Black), 428 (Orange/Black), and ground.If voltage is 2.3-2.7 volts, go to next step. If voltage is not 2.3-2.7 volts, replace SARC module.

Check Sensor For Internal Short

Reconnect height sensor and SARC module. Using NGS tester, turn on sensor power using ACTIVE COMMAND MODE test, SUSPENSION DIAGNOSTIC CONTROL, HT SENSOR POWER: ON. Backprobing SARC module, check voltage between circuit 423 (Purple/Light Green), 425 (Brown/Black), 427 (Pink/Black), 428 (Orange/Black), and ground. If voltage is more than 4.5 volts, replace suspect height sensor and repeat self test. If voltage is 4.5 volts or less, problem is intermittent. Perform wiggle test. Repeat self test. See SELF TEST.