B2416

LIGHTING (EXT): LIGHTING SYSTEM: B2416: Height Control Sensor Malfunction

DTC B2416 - Height Control Sensor Malfunction

DESCRIPTION

The AFS ECU receives signals indicating the height of the vehicle from the suspension control ECU.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
OK:
DTC B2416 output does not occur.
NG -- CHECK FOR DTC (AIR SUSPENSION SYSTEM)
OK -- USE SIMULATION METHOD TO CHECK
2. CHECK FOR DTC (AIR SUSPENSION SYSTEM)
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
OK:
DTC "C1712/12 Front Height Control Sensor LH Circuit Malfunction" and "C1714/14 Rear Height Control Sensor LH Circuit Malfunction" output does not occur.
NG -- GO TO AIR SUSPENSION SYSTEM
OK -- Continue to next step.
3. READ VALUE USING TECHSTREAM (AFS ECU)
(a) Using the Techstream, read the Data List.

AFS





OK:
Power supply voltage is approximately 5 V and height control sensor voltage changes when vehicle height is changed.
NG -- CHECK HARNESS AND CONNECTOR (AFS ECU - SUSPENSION CONTROL ECU)
OK -- REPLACE AFS ECU
4. CHECK HARNESS AND CONNECTOR (AFS ECU - SUSPENSION CONTROL ECU)




(a) Disconnect the E91, K31 and K32 ECU connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. CHECK SUSPENSION CONTROL ECU




(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:





(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE SUSPENSION CONTROL ECU
OK -- REPLACE AFS ECU