Inspection Procedure

1. When using the intelligent tester.
   1. Connect the intelligent tester (with CAN VIM) to the DLC3.
   2. Turn ignition switch ON and push the intelligent tester main switch ON.
   3. Select DATA LIST mode on the intelligent tester.
   4. Read the voltages on the tester screen when operating the manual switch.
      Fig 1: Checking Tilt & Telescopic Manual Switch

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. When not using the intelligent tester.
   1. Remove the tilt and telescopic ECU with the connector still connected.
   2. Measure the voltage between terminals MSW and GND of the T7 ECU connector when operating the manual switch.

      Standard voltage 

      MANUAL SWITCH VOLTAGE SPECIFIED CONDITION REFERENCE TABLE
      
      

      Manual Switch Position	Specified Condition
      Neutral position	0.00 to 0.20 V
      Tilt UP	1.30 to 1.70 V
      Tilt DOWN	0.30 to 0.50 V
      Telescopic SHORT	0.65 to 0.95 V
      Telescopic LONG	2.05 to 2.75 V

      Fig 2: Measuring Voltage Between Terminals MSW & GND Of T7 ECU Connector

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed to
      Switch voltages in all directions are within the standard.	A
      Switch voltage in a certain direction is out of the standard.	B
      Switch voltages in all directions are out of the standard.	C

A: REPLACE TILT AND TELESCOPIC ECU 

B: REPLACE TILT AND TELESCOPIC MANUAL SWITCH 

C: GO TO NEXT STEP 

1. Remove the ECU with the connectors still connected.
2. Measure the voltage between terminal VC of the T7 ECU connector and body ground.

   Standard voltage: 

   4.5 to 5.5 V 

NG: Go to step   4 

Fig 3: Measuring Voltage Between Terminal VC Of T7 ECU Connector & Body Ground

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: GO TO NEXT STEP 

1. Disconnect the combination switch connector.
2. Measure the resistance between terminals VC and MSW of the combination switch connector when operating the manual switch.

   Standard resistance 

   SWITCH POSITION RESISTANCE SPECIFICATION
   
   

   Switch position	Resistance
   Tilt UP	352 to 368 Ω
   Tilt DOWN	1,950 to 2,030 Ω
   Telescopic SHORT	774 to 806 Ω
   Telescopic LONG	156 to 164 Ω

NG: REPLACE TILT AND TELESCOPIC MANUAL SWITCH 

Fig 4: Measuring Resistance Between Terminals VC & MSW Of Combination Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: GO TO NEXT STEP 

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE