Inspection Procedure

1. Connect the intelligent tester to the DLC3.
2. Turn the engine switch on (IG) and turn the intelligent tester main switch on.
3. Read the DATA LIST according to the displays on the tester.

   MAIN BODY: 

   DATA LIST (MAIN BODY)
   
   

   Item	Measurement Item / Range (Display)	Normal Condition	Diagnostic Note
   SHIFT P SIG	Shift P Signal / ON or OFF	ON: Shift P signal ON (Shift position is P) OFF: Shift P signal OFF (Shift position is not P)	-

   OK: "ON" (P signal is ON) and "OFF" (P signal is OFF) appears on the screen. 

   HINT:

   If the result is not as specified, there may be a malfunction with the shift lock control ECU (See DIAGNOSTIC TROUBLE CODE CHART ).

NG: Go to step 2 

OK: GO TO SHIFT CONTROL SYSTEM 

1. Disconnect the E58 and E77 ECU connectors.
   Fig 1: Identifying Main Body ECU And Shift Lock Control ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Terminal No. (Symbol)	Condition	Specified Condition
   E58-2 (P) - E77-11 (P2)	Always	Below 1 Ω
   E58-2 (P) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to Next Step 

1. After replacing the main body ECU with a normally functioning ECU, check that the engine can start normally. Make sure the brake pedal is depressed and the shift position is P at this time.
2. Check that the engine switch mode can be changed by pushed the engine switch.

   HINT:

   Without depressing the brake pedal, push the engine switch repeatedly. Engine switch mode should turn from off to on (ACC) to on (IG) and back to off. With the brake pedal depressed, push the engine switch repeatedly.

   Engine switch mode should turn to ENGINE START from any status.

   OK: Engine can start normally. 

   HINT:

   If engine does not start, (See ENGINE DOES NOT START  ).

NG: GO TO OTHER PROBLEM 

OK: END (MAIN BODY ECU DEFECTIVE)