WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
- Before performing troubleshooting, inspect the connectors of related circuits.
- Before replacing the suspension control ECU, perform all of the following again: 1) symptom simulation See: Accessories
and Optional Equipment/Antitheft and Alarm Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled
Systems/How To Proceed With Troubleshooting; 2) DTC inspection See: Steering and Suspension/Suspension/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes; and 3) Techstream inspection (Data List or Active Test) See:
Steering and Suspension/Suspension/Testing and Inspection/Scan Tool Testing and Procedures. If no malfunctions are found
in other areas, replace the suspension control ECU.
- If the suspension control ECU is replaced, the vehicle height offset calibration and registration of vehicle identification
information must be performed See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic
)/Testing and Inspection/Calibration and See: Steering and Suspension/Suspension/Suspension Control ( Automatic -
Electronic )/Testing and Inspection/Registration)
HINT
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. READ VALUE USING TECHSTREAM (IG AND +B POWER SOURCE VOLTAGE)
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG) and the Techstream on.
(d) Enter the following menus: Chassis / Air suspension / Data List.
(e) According to the display on the Techstream.
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