DTC B2416: Height Control Sensor Malfunction: Procedure

1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Check for DTCs. Refer to DTC CHECK / CLEAR .

   OK

   DTC B2416 output does not occur.

NG → See step   3 

OK → See step   2 

1. Check for DTCs. Refer to DTC CHECK / CLEAR .

   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 → See step   8 

OK: Go to next step 

1. Using the Techstream, read the Data List.
   AFS
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Height Sens Pw Supply Val	Height control sensor power supply value / Min.: 0 V, Max.: 5 V	Power supply voltage to height control sensor	-
   Fr Height Sens Signal Val	Front height control sensor signal / Min.: 0 V, Max.: 5 V	Height control sensor vehicle height value	-
   Rr Height Sens Signal Val	Rear height control sensor signal / Min.: 0 V, Max.: 5 V	Height control sensor vehicle height value	-

   OK

   Power supply voltage is approximately 5 V and height control sensor voltage changes when vehicle height is changed.

NG → See step   5 

OK → See step   7 

1. Disconnect the E91, K31 and K32 ECU connectors.
   Fig 1: Checking Harness And Connector (AFS ECU - Suspension Control ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E91-17 (SHFL) - K31-22 (SHF2)	Always	Below 1 Ω
   E91-18 (SBR) - K31-23 (SHB5)
   E91-19 (SHRL) - K32-28 (SHR2)
   E91-21 (SGR) - K31-11 (SHG5)
   E91-17 (SHFL) - Body ground	Always	10 kΩ or higher
   E91-18 (SBR) - Body ground
   E91-19 (SHRL) - Body ground
   E91-21 (SGR) - Body ground

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Measure the voltage according to the value(s) in the table below.
   Fig 2: Checking Suspension Control ECU

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   K31-23 (SHB5) - K31-11 (SHG5)	Engine switch on (IG)	4.5 to 5.5 V
   K31-22 (SHF2) - K31-11 (SHG5)	While engine running, height control switch changed from HIGH to NORM, and vehicle height adjustment finished	2.20 to 2.80 V
   K32-28 (SHR2) - K31-11 (SHG5)	While engine running, height control switch changed from HIGH to NORM, and vehicle height adjustment finished	2.21 to 2.80 V

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   K31-11 (SHG5) - Body ground	Always	Below 1 Ω

NG → See step   9 

OK → See step   7