Dtc C1762/62 Continuous Current To Exhaust Solenoid


DESCRIPTION

INSPECTION PROCEDURE

CUSTOMER PROBLEM ANALYSIS

CHECK DTC

INSPECT AIR TUBE (AIR TUBE FOR CLOG)

INSPECT NO. 2 HEIGHT CONTROL VALVE

INSPECT HEIGHT CONTROL COMPRESSOR (EXHAUST SOLENOID VALVE)

DTC C1762/62 Continuous Current to Exhaust Solenoid


DESCRIPTION

The exhaust valve built into the height control compressor assembly opens to discharge compressed air from the pneumatic cylinders into the atmosphere according to the signal from the suspension control ECU.

DTC Code
DTC Detection Condition
Trouble Area
C1762/62
With the exhaust solenoid valve activated, the vehicle height is not lowered to the standard vehicle height after 100 seconds have elapsed.
  1. Clogging in air tube or each valve
  2. Leveling solenoid valve (No. 2 height control valve)
  3. Gate solenoid valve (No. 2 height control valve)
  4. Exhaust valve (Height control compressor)
  5. Suspension control ECU

INSPECTION PROCEDURE

NOTICE:
When replacing the suspension control ECU, perform registration (LandCruiser RM000003X4500TX.html).
HINT:
If DTC C1782/82 is output at the same time, perform troubleshooting for C1782/82 first (LandCruiser RM000001N9301JX.html).
1.CUSTOMER PROBLEM ANALYSIS

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

    HINT:
    DTC C1762/62 can be stored under unusual vehicle or usage conditions.

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

NEXT


2.CHECK DTC

  1. Clear the DTC (LandCruiser RM000001G7P02NX.html).

  1. Start the engine and wait for 100 seconds or more.

  1. Set the vehicle height to HI, wait until the vehicle height change is complete, and then return the vehicle height to normal.

  1. Check for DTC (LandCruiser RM000001G7P02NX.html).

    Result
    Result
    		Proceed to
    DTC C1762/62 is output
    		A
    DTC C1762/62 is not output
    		B
    DTC C1762/62 and other DTCs are output
    		C


B
END (C1762/62 WAS OUTPUT DUE TO UNUSUAL VEHICLE OR USAGE CONDITION)

C
GO TO DIAGNOSTIC TROUBLE CODE CHART (LandCruiser RM000002Q4X026X.html)
A


3.INSPECT AIR TUBE (AIR TUBE FOR CLOG)

  1. Inspect the air tubes for clogs (LandCruiser RM000001U54015X.html).

    OK:
    No clogs are found in the air tubes.


NG
REPAIR OR REPLACE AIR TUBE
OK


4.INSPECT NO. 2 HEIGHT CONTROL VALVE

  1. Turn the ignition switch off.

  1. Remove the No. 2 height control valve (LandCruiser RM000002FOA01NX.html).



    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Suspension Control.Air Suspension System. Dtc C1762/62 Continuous Current To Exhaust Solenoid

  1. Measure the resistance according to the values in the table below.

    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)

  1. 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).

  1. 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).


NG
REPLACE NO. 2 HEIGHT CONTROL VALVE (LandCruiser RM000002FOA01NX.html)
OK


5.INSPECT HEIGHT CONTROL COMPRESSOR (EXHAUST SOLENOID VALVE)

  1. Turn the ignition switch off.

  1. Remove the height control compressor (LandCruiser RM000002BGX00QX.html).



    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Suspension Control.Air Suspension System. Dtc C1762/62 Continuous Current To Exhaust Solenoid

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    2 (L) - 1 (B)
    		20°C (68°F)
    		10 to 14 Ω
    Text in Illustration
    *a
    		Component without harness connected
    (Exhaust Valve)

  1. Connect the positive (+) lead of the battery to terminal 2 (L) and the negative (-) lead to terminal 1 (B) of the solenoid valve connector. Then check that the valve makes an operating sound.

    OK:
    Operation of solenoid (clicking sound) can be heard.


NG
REPLACE HEIGHT CONTROL COMPRESSOR ASSEMBLY (LandCruiser RM000002BGX00QX.html)
OK

REPLACE SUSPENSION CONTROL ECU (LandCruiser RM000002BGR01UX.html)