CAN COMMUNICATION SYSTEM > Absorber Control ECU Communication Stop Mode

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DESCRIPTION


Detection Item
Symptom
Trouble Area
ABSORBER CONTROL ECU COMMUNICATION STOP MODE
  1. "AIR SUSPENSION" is not displayed on the "Communication Bus Check" of the intelligent tester
  2. Applies to "ABSORBER CONTROL ECU COMMUNICATION STOP MODE" in the "DTC COMBINATION TABLE"
  1. Power source or inside the absorber control ECU
  2. Absorber control ECU sub bus line or connector

WIRING DIAGRAM


C112555E01


C112555E02


INSPECTION PROCEDURE

1.CHECK CAN BUS LINE FOR DISCONNECTION (ABSORBER CONTROL ECU SUB BUS LINE)

  1. Turn the engine switch off.

  1. Disconnect the absorber control ECU (L72).



    G030168E05

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Value
    L72-7 (CANH) - L72-8 (CANL)
    		Engine switch off
    		54 to 69 Ω



NG
REPAIR OR REPLACE ABSORBER CONTROL ECU SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L)
OK


2.CHECK WIRE HARNESS (B, GND)


    G030168E06

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Value
    L72-4 (GND) - Body ground
    		Always
    		Below 1 Ω

  1. Measure the voltage according to the value(s) in the table below.

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Value
    L72-1 (B) - Body ground
    		Engine switch on (IG)
    		10 to 14 V



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ABSORBER CONTROL ECU