Inspection Procedure

1. CHECK RESISTANCE OF SOLENOID
   1. Disconnect the connector from the PPS linear solenoid valve assy.
   2. Measure the resistance according to the value(s) in PPS LINEAR SOLENOID VALVE - RESISTANCE TABLE  .

   Standard: 

   PPS LINEAR SOLENOID VALVE - RESISTANCE TABLE
   
   

   Tester Connection	Condition	Specified Condition
   P2-1 (SOL+) -P2-2 (SOL-)	Always	6 to 11 Ω (-40 to 150°C)

   Fig 1: Checking Resistance Of Solenoid

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. CHECK OPERATION OF SOLENOID
   1. Connect the battery positive terminal to solenoid valve terminal 1 (SOL+) and the negative terminal to terminal 2 (SOL-).
   2. Check that the solenoid makes a clicking sound.

      OK: 

      The PPS linear solenoid valve assy makes a click sound. 

   HINT:

   • Do not apply voltage for more than 30 seconds to avoid burnout of the solenoid.
   • If repeating this step, wait until the solenoid cools down enough to be touched by hand.

   NG: REPLACE RACK & PINION POWER STEERING GEAR ASSY (See step 15 in  OVERHAUL  ) 

   OK: Go to next step. 

1. Disconnect the connector from the power steering ECU assy.
2. Measure the resistance according to the value(s) in the table below.

Standard: 

Fig 2: Checking Harness And Connector (Power Steering ECU Assy - PPS Linear Solenoid)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE POWER STEERING ECU ASSY (See step 8 in  REPLACEMENT  )