DTC C1735/35: Exhaust Solenoid Valve Circuit: Procedure

1. Check DTCs. Refer to DTC CHECK / CLEAR .
   1. Confirm if the DTC C1761/61 and/or C1774/74 is recorded.

      OK

      DTC C1761/61 and/or C1774/74 is not output.

NG → REPAIR CIRCUIT INDICATED BY OUTPUT CODE 

OK: Go to next step 

1. Disconnect the exhaust solenoid valve connector.
   Fig 1: Identifying Exhaust Solenoid Valve Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the values in the table below.

   Standard resistance

   Tester Connection	Specified Condition
   1 (SLEX) - 2 (GND)	12 +- 2 Ω

3. Check the operating sound of the exhaust solenoid valve when the battery positive voltage is applied to the terminals.

   Battery Positive	Battery Negative
   1 (SLEX)	2 (GND)

   OK

   It should make an operating sound (click).

   HINT: 

   When a malfunction is found in the exhaust solenoid valve, replace the height control compressor assembly.

NG → REPLACE HEIGHT CONTROL COMPRESSOR ASSEMBLY 

OK: Go to next step 

1. Disconnect the suspension control ECU S14 connector.
   Fig 2: Identifying Suspension Control ECU S14 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the values in the table below.

   Standard resistance

   Tester Connection	Specified Condition
   S14-8 (SLEX) - 1 (SLEX)	Below 1 Ω
   S14-8 (SLEX) - Body ground	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Measure the resistance according to the values in the table below.
   Fig 3: Identifying Exhaust Solenoid Valve Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Specified Condition
   (GND) - Body ground	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → REPLACE SUSPENSION CONTROL ECU