Initial Inspection and Diagnostic Overview

SUSPENSION CONTROL: ADAPTIVE VARIABLE SUSPENSION SYSTEM: DIAGNOSIS SYSTEM

1. DIAGNOSIS SYSTEM

(a) Inspect the battery voltage.

Battery voltage:

11 to 14 V

If the voltage is below 11 V, recharge the battery before proceeding.

(b) Check DLC3.

The absorber control ECU uses the CAN system and ISO 9141-2 for communication. The terminal arrangement of the DCL3 complies with SAE J1962 and matches the ISO 9141-2 format.

Verify the conditions listed in the table below:









HINT
If the Techstream display shows a communication error message when the cable of Techstream is connected to the DLC3, the engine switch is turned on (IG) and the tester is in operation, there is a problem either on the vehicle side or tester side.

* If communication is normal when the tester is connected to another vehicle, inspect the DLC3 on the original vehicle.
* If communication is still not possible when the tool is connected to another vehicle, the problem is probably in the tester itself. Consult the service department listed in the tester's instruction manual.

(c) DTCs (Normal mode)

(1) DTCs are memorized in the absorber control ECU and read by using Techstream Adaptive Variable Suspension System.

(d) Test Mode (SIGNAL CHECK)

(1) By switching from normal mode into Test Mode, you can inspect the absorber control switch and each acceleration sensor Test Mode Procedure.

(e) Check the absorber control indicator light.





(1) Turn the engine switch on (IG).

(2) Check that the absorber control indicator light comes on for 2 seconds.

If the indicator light check result is not normal, proceed to troubleshooting for the absorber control indicator light circuit below.