B2416

LIGHTING: LIGHTING SYSTEM: B2416: Height Control Sensor Malfunction
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 DTC Reading and Clearing Diagnostic Trouble Codes.

(b) Check for DTC 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 How To Proceed With Troubleshooting

2. CHECK FOR DTC (AIR SUSPENSION SYSTEM)

(a) Check for DTC Air Suspension System.

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 Air Suspension System
OK -- Continue to next step.

3. READ VALUE USING TECHSTREAM (AFS ECU)

(a) Using the Techstream, read the Data List.

AFS





NG -- CHECK SUSPENSION CONTROL ECU

OK -- REPLACE AFS ECU Removal

4. 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 Removal
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (AFS ECU - SUSPENSION CONTROL ECU)

(a) Disconnect the A37 and A39 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 -- REPLACE AFS ECU Removal