DTC C1761-61: Continuous Current to Compressor Motor [08/2015 - 08/2019]: Procedure

1. Ask the customer about the vehicle and usage conditions when the DTC was stored.

   HINT: 

   DTC C1761/61 can be stored under unusual vehicle or usage conditions.

   Points to confirm

   Confirm if there were any foreign objects caught between the body and tires. Confirm if the vehicle has been driven on an unpaved surface or with a wheel not contacting the ground. Confirm if the vehicle has been raised with an excess load. Confirm if the vehicle height mode has been continuously changed using the height control switch, causing the vehicle to raise and lower repeatedly.

Result: 

NEXT 

See step  2

1. Clear the DTC (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).
2. Start the engine and wait for 4 minutes or more.
3. Set the vehicle height to HI, wait until the vehicle height change is complete, and then return the vehicle height to normal.
4. Check the DTC (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).
   RESULT
   
   

   Result	Proceed to
   DTC C1761/61 is output	A
   DTC C1761/61 is not output	B
   DTC C1761/61 and other DTCs are output	C

Result: 

B 

END (C1761/61 WAS OUTPUT DUE TO UNUSUAL VEHICLE OR USAGE CONDITION) 

Result: 

C 

GO TO DIAGNOSTIC TROUBLE CODE CHART 

(Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2015 - 08/2019] )

Result: 

A 

See step  3

1. Inspect the air tube for air leaks or clogs (Refer to PRECAUTION [08/2015 - ] ).

   OK

   No air leaks or clogs are found in the air tube.

Result: 

NG 

REPAIR OR REPLACE AIR TUBE 

Result: 

OK 

See step  4

1. Turn the engine switch off.
2. Remove the No. 2 height control valve (Refer to REMOVAL [08/2015 - ] ).
3. Measure the resistance according to the values in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   1 (LH+) - 2 (E)	15 to 25°C (59 to 77°F)	17.5 to 21.5 Ω
   3 (RH+) - 2 (E)	15 to 25°C (59 to 77°F)	10 to 14 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (No. 2 Height Control Valve)

4. Check the leveling solenoid valve.
   1. Connect the positive (+) lead of the battery to terminal 3 (RH+) and the negative (-) lead to terminal 2 (E).
   2. Check the operating sound of the No. 2. height control valve

      OK

      It makes an operating sound (click).

5. Check the gate solenoid valve.
   1. Connect the positive (+) lead of the battery to terminal 1 (LH+) and the negative (-) lead to terminal 2 (E).
   2. Check the operating sound of the No. 2. height control valve.

      OK

      It makes an operating sound (click).

Result: 

NG 

REPLACE NO. 2 HEIGHT CONTROL VALVE 

(Refer to REMOVAL [08/2015 - ] )

Result: 

OK 

See step  5

See step  3

Result: 

NG 

REPLACE HEIGHT CONTROL COMPRESSOR ASSEMBLY 

(Refer to REMOVAL [08/2015 - ] )

Result: 

OK 

See step  6

See step  4

Result: 

NG 

REPLACE HEIGHT CONTROL COMPRESSOR ASSEMBLY 

(Refer to REMOVAL [08/2015 - ] )

Result: 

OK 

See step  7

See step  2

Result: 

OK 

REPLACE SUSPENSION CONTROL ECU 

(Refer to REMOVAL [08/2015 - ] )

Result: 

NG 

REPLACE SUSPENSION CONTROL RELAY (AIR SUS)