DTC B241A Rear Height Control Sensor |
for Preparation Click here
DESCRIPTION
The AFS ECU (headlight swivel ECU assembly) receives signals indicating the height of the vehicle from the rear height control sensor sub-assembly.DTC No. | DTC Detecting Condition | Trouble Area |
B241A |
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WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- If either of the following is performed, initialization of the AFS ECU (headlight swivel ECU assembly) is necessary (Click here).
- Replacement of the AFS ECU (headlight swivel ECU assembly).
- Replacement or removal/installation of the rear height control sensor sub-assembly or work that changes the vehicle height such as replacement of suspension components.
1.CHECK FOR DTC |
Clear the DTCs (Click here).
Check for DTCs (Click here).
- OK:
- DTC B241A is not output.
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OK | ||
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2.READ VALUE USING INTELLIGENT TESTER |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON.
Turn the intelligent tester on.
Enter the following menus: Body / AFS / Data List.
Read the display on the intelligent tester.
AFS Tester Display Measurement Item/Range Normal Condition Diagnostic Note Height Sens Pw Supply Val Rear height control sensor power supply value / 0.00 to 6.25 V Approx. 5.0 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.
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OK | ||
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3.INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY |
Remove the rear height control sensor sub-assembly (Click here).
Inspect the rear height control sensor sub-assembly (Click here).
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OK | |
4.CHECK HARNESS AND CONNECTOR (AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY) |
Disconnect the A35 AFS ECU (headlight swivel ECU assembly) connector.
Disconnect the O17 rear height control sensor sub-assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition A35-19 (SHRL) - O17-2 (SHRR) Always Below 1 Ω A35-19 (SHRL) - Body ground Always 10 kΩ or higher
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OK | ||
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