DTC C13ED-1C: 4WD/AWD Ring Gear Revolution Sensor Circuit Voltage Out of Range [12/2019 - ]: Procedure

1. Remove the transmission revolution sensor.

   Refer to DISASSEMBLY [12/2019 - ]

2. Connect the battery to the transmission revolution sensor as shown in the illustration.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Battery	*2	Ammeter
   *a	Component without harness connected (Transmission Revolution Sensor)	*b	Magnet
   *c	5 mm (0.197 in.)	-	-

3. Wave a magnet left and right 5 mm (0.197 in.) or less from the tip of the transmission revolution sensor to output a high/low signal while measuring the current.
   NOTE:

   Make sure to wave the magnet during the inspection. The current will not change unless the magnet is moved as shown in the illustration.

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

   Standard Current

   Tester Connection	Condition	Specified Condition
   1 (PS-) - 2 (PS+)	Low signal (Move magnet closer)	6 mA
   1 (PS-) - 2 (PS+)	High signal (Move magnet away)	14 mA

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE TRANSMISSION REVOLUTION SENSOR. Refer to  DISASSEMBLY [12/2019 - ] 

Result: 

OK 

See step  2

1. Disconnect the s5 transmission revolution sensor connector.
2. Disconnect the M41 4WD ECU assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   s5-2 (PS+) - M41-19 (PS+)	Always	Below 1 Ω
   s5-1 (PS-) - M41-9 (PS-)	Always	Below 1 Ω
   s5-2 (PS+) or M41-19 (PS+) - Body ground and other terminals	Always	10 kΩ or higher
   s5-1 (PS-) or M41-9 (PS-) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE 4WD ECU ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR