DTC B2416 Height Control Sensor Malfunction

Connect the intelligent tester to the DLC3.

Turn the engine switch on (IG).

Turn the intelligent tester main switch on.

Select the "DATA LIST" on the intelligent tester, and read the displays on the intelligent tester.

• OK:
• Condition sign can be displayed.

• Result:

• Result	Proceed to
  OK (When checking from PROBLEM SYMPTOMS TABLE)	A
  OK (When checking from DIAGNOSTIC TROUBLE CODE CHART)	B
  NG	C

Disconnect the A17 front height control sensor connector.

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

• Standard voltage:

• Tester Connection	Condition	Specified Condition
  A17-1 (SHG) - A17-3 (SHB)	Engine switch on (IG)	4.5 to 5.5 V

Disconnect the Y2 rear height control sensor connector.

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

• Standard voltage:

• Tester Connection	Condition	Specified Condition
  Y2-1 (SHG) - Y2-3 (SHB)	Engine switch on (IG)	4.5 to 5.5 V

Disconnect the A28 AFS ECU connector.

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

• Standard resistance:

• Tester Connection	Condition	Specified Condition
  A28-2 (SHFL) - A17-2 (SHFL)	Always	Below 1 Ω
  A28-2 (SHFL) - Body ground	Always	10 kΩ or higher

Disconnect the Y2 sensor connector.

Disconnect the A27 AFS ECU connector.

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

• Standard resistance:

• Tester Connection	Condition	Specified Condition
  A27-9 (SHRL) - Y2-2 (SHRL)	Always	Below 1 Ω
  A27-9 (SHRL) - Body ground	Always	10 kΩ or higher

Connect 3 dry cell batteries (1.5 V) in series.

Remove the height control sensor assembly front.

Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead from the battery to terminal 1.

Measure the voltage between terminals 2 and 1 while slowly moving the link up and down.

• Standard voltage:

• Tester Connection	Condition	Specified Condition
  A17-2 (SHFL) - A17-1 (SHG)	+45°	Approx. 4.5 V
  A17-2 (SHFL) - A17-1 (SHG)	0° (Normal)	Approx. 2.5 V
  A17-2 (SHFL) - A17-1 (SHG)	-45° (Low)	Approx. 0.5 V

Connect 3 dry cell batteries (1.5 V) in series.

Remove the height control sensor assembly rear.

Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead from the battery to terminal 1.

Measure the voltage between terminals 2 and 1 while slowly moving the link up and down.

• Standard voltage:

• Tester Connection	Condition	Specified Condition
  Y2-2 (SHRL) - Y2-1 (SHG)	+45°	Approx. 4.5 V
  Y2-2 (SHRL) - Y2-1 (SHG)	0° (Normal)	Approx. 2.5 V
  Y2-2 (SHRL) - Y2-1 (SHG)	-45° (Low)	Approx. 0.5 V

Disconnect the A17 front height control sensor connector.

Disconnect the A28 AFS ECU connector.

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

• Standard resistance:

• Tester Connection	Condition	Specified Condition
  A28-1 (SBF) - A17-3 (SHB)	Always	Below 1 Ω
  A28-2 (SHFL) - A17-2 (SHFL)	Always	Below 1 Ω
  A28-17 (SGF) - A17-1 (SHG)	Always	Below 1 Ω
  A28-1 (SBF) - Body ground	Always	10 kΩ or higher
  A28-2 (SHFL) - Body ground	Always	10 kΩ or higher
  A28-17 (SGF) - Body ground	Always	10 kΩ or higher

Disconnect the Y2 sensor connector.

Disconnect the A27 AFS ECU connector.

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

• Standard resistance:

• Tester Connection	Condition	Specified Condition
  A27-10 (SBR) - Y2-3 (SHB)	Always	Below 1 Ω
  A27-9 (SHRL) - Y2-2 (SHFL)	Always	Below 1 Ω
  A27-20 (SGR) - Y2-1 (SHG)	Always	Below 1 Ω
  A27-10 (SBR) - Body ground	Always	10 kΩ or higher
  A27-9 (SHRL) - Body ground	Always	10 kΩ or higher
  A27-20 (SGR) - Body ground	Always	10 kΩ or higher