DTC B241A: Rear Height Control Sensor [09/2014 - ]: Procedure

1. Clear the DTCs. Refer to DTC CHECK / CLEAR [09/2014 - ] .
2. Check for DTCs. Refer to DTC CHECK / CLEAR [09/2014 - ] .

   OK

   DTC B241A is not output.

NG → See step   2 

OK → See step   7 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / HL Auto Leveling / Data List.
5. Read the display on the Techstream.
   HL AUTO LEVELING
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Height Sens Pw Supply Val	Rear height control sensor power supply value / 0.00 to 5.00 V	Approx. 5 V	-
   Rr Height Sens Signal Val	Rear height control sensor signal value / 0.00 to 5.00 V	Approx. 2.5 V (When the vehicle is level)	Value changes according to vehicle height

   OK

   Normal conditions listed above are displayed.

NG → See step   3 

OK → See step   5 

1. Remove the rear height control sensor sub-assembly. Refer to REMOVAL [09/2014 - ] .
2. Inspect the rear height control sensor sub-assembly. Refer to INSPECTION [09/2014 - ] .

NG → See step   6 

OK: Go to next step 

1. Disconnect the A34 headlight leveling ECU assembly connector.
2. Disconnect the O17 rear height control sensor sub-assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A34-19 (SHRL) - O17-2 (SHRR)	Always	Below 1 Ω
   A34-19 (SHRL) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   5