DTC C1713/13: Rear Height Control Sensor RH Circuit Malfunction; DTC C1714/14: Rear Height Control Sensor LH Circuit Malfunction: Procedure

Fig 1: Identifying Rear Height Control Sensor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*A	for RH	*B	for LH
*1	Rear Height Control Sensor	-	-
*a	Component without harness connected (Rear Height Control Sensor)	*b	Min. Low
*c	Normal	*d	Max. High
	45°		45°

1. Check the rear height control sensor RH (when DTC C1713/13 is output).
   1. Remove the rear height control sensor RH. Refer to REMOVAL .
   2. Connect 3 dry cell batteries of 1.5 V in series.
   3. Connect the positive (+) end of the batteries to terminal 1 (SHB) of the height control sensor and the negative (-) end of the batteries to terminal 3 (SHG). While slowly moving the sensor link up and down, measure the voltage between terminal 2 (SHRR) and terminal 3 (SHG).
   4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection	Condition	Specified Condition
      3 (SHG) - 2 (SHRR)	Max. High (45°)	4.4 to 4.6 V
      	Normal (0°)	2.3 to 2.6 V
      	Min. Low (-45°)	0.4 to 0.6 V

      NOTE:

      Do not apply a voltage of 5 V or higher.

2. Check the rear height control sensor LH (when DTC C1714/14 is output).
   1. Remove the rear height control sensor LH. Refer to REMOVAL .
   2. Connect 3 dry cell batteries of 1.5 V in series.
   3. Connect the positive (+) end of the batteries to terminal 1 (SHB) of the height control sensor and the negative (-) end of the batteries to terminal 3 (SHG). While slowly moving the sensor link up and down, measure the voltage between terminal 2 (SHRL) and terminal 3 (SHG).
   4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection	Condition	Specified Condition
      3 (SHG) - 2 (SHRL)	Max. High (45°)	4.4 to 4.6 V
      	Normal (0°)	2.3 to 2.6 V
      	Min. Low (-45°)	0.4 to 0.6 V

      NOTE:

      Do not apply a voltage of 5 V or higher.

   RESULT
   
   

   Result	Proceed to
   OK	A
   NG (Rear height control sensor RH)	B
   NG (Rear height control sensor LH)	C

C → See step   4 

B → See step   3 

A: Go to next step 

1. Check the rear height control sensor RH (when DTC C1713/13 is output).
   1. Disconnect the S2 rear height control sensor RH connector.
   2. Disconnect the R22 suspension control ECU connector.
   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection	Condition	Specified Condition
      S2-3 (SHG) - R22-16 (SGR2)	Always	Below 1 Ω
      S2-2 (SHRR) - R22-26 (SHRR)	Always	Below 1 Ω
      S2-1 (SHB) - R22-13 (SBR2)	Always	Below 1 Ω
      S2-3 (SHG) - Body ground	Always	10 kΩ or higher
      S2-2 (SHRR) - Body ground	Always	10 kΩ or higher
      S2-1 (SHB) - Body ground	Always	10 kΩ or higher

2. Check the rear height control sensor LH (when DTC C1714/14 is output).
   1. Disconnect the S5 rear height control sensor LH connector.
   2. Disconnect the R22 suspension control ECU connector.
   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection	Condition	Specified Condition
      S5-3 (SHG) - R22-15 (SGL2)	Always	Below 1 Ω
      S5-2 (SHRL) - R22-24 (SHRL)	Always	Below 1 Ω
      S5-1 (SHB) - R22-14 (SBL2)	Always	Below 1 Ω
      S5-3 (SHG) - Body ground	Always	10 kΩ or higher
      S5-2 (SHRL) - Body ground	Always	10 kΩ or higher
      S5-1 (SHB) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   5