Inspection Procedure

HINT:

• The following troubleshooting flowchart is based on the premise that the engine is cranked normally. If the engine will not crank, proceed to the PROBLEM SYMPTOMS TABLE  .
• Read freeze frame data using Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

1. READ VALUE USING TECHSTREAM (STARTER SIGNAL) 
   1. Connect Techstream to the DLC3.
   2. Turn the ignition switch ON and turn the tester ON.
   3. Select the following menu items: Powertrain / Engine and ECT / Data List / Starter Signal.
   4. Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.

      OK 

      IGNITION SWITCH POSITION CHART
      
      

      Ignition Switch Position	STARTER SIG
      ON	OFF
      START	ON

   OK: CHECK FOR INTERMITTENT PROBLEMS 

   NG: Go to next step 

2. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
   Fig 1: Identifying Park/Neutral Position Switch Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Disconnect the B26 PNP switch connector.
   2. Measure the resistance when the transmission gear selector lever is moved to each position.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART
      
      

      Gear Selector Lever Position	Tester Connection	Specified Condition
      P	2 (RB) - 6 (PL), 4 (B) - 5 (L)	Below 1 Ω
      R	1 (RL) - 2 (RB)	Below 1 Ω
      N	2 (RB) - 9 (NL), 4 (B) - 5 (L)	Below 1 Ω
      D	2 (RB) - 7 (DL)	Below 1 Ω
      2	2 (RB) - 3 (2L)	Below 1 Ω
      L	2 (RB) - 8 (LL)	Below 1 Ω

   3. Reconnect the PNP switch connector.

   OK:  Go to step  5

   NG: Go to next step 

3. REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
4. READ VALUE USING TECHSTREAM (STARTER SIGNAL) 
   1. Connect Techstream to the DLC3.
   2. Turn the ignition switch ON and turn the tester ON.
   3. Select the following menu items: Powertrain / Engine and ECT / Data List / Starter Signal.
   4. Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.

      OK 

      IGNITION SWITCH POSITION CHART
      
      

      Ignition Switch Position	STARTER SIG
      ON	OFF
      START	ON

   OK: SYSTEM OK 

   NG: Go to next step 

5. INSPECT IGNITION SWITCH ASSEMBLY 
   1. Disconnect the; E3 ignition switch connector.
   Fig 2: Identifying Ignition Switch Connector
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Check the resistance.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART
      
      

      Tester Connection	Ignition Switch Position	Specified Condition
      All Terminals	LOCK	10 kΩ or higher
      2 (AM1) - 3 (ACC)	ACC	Below 1 Ω
      2 (AM1) - 3 (ACC), 2 (AM1) - 4 (IG1), 6 (IG2) - 7 (AM2)	ON
      1 (ST1) - 2 (AM1), 2 (AM1) - 4 (IG1), 6 (IG2) - 7 (AM2), 7 (AM2) - 8 (ST2)	START

   3. Reconnect the ignition switch connector.

   OK:  Go to step  7

   NG: Go to next step 

6. REPLACE IGNITION SWITCH ASSEMBLY 
7. READ VALUE USING TECHSTREAM (STARTER SIGNAL) 
   1. Connect Techstream to the DLC3.
   2. Turn the ignition switch ON and turn the tester ON.
   3. Select the following menu items: Powertrain / Engine and ECT / Data List / Starter Signal.
   4. Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.

      OK 

      IGNITION SWITCH POSITION CHART
      
      

      Ignition Switch Position	STARTER SIG
      ON	OFF
      START	ON

   OK: SYSTEM OK 

   NG: Go to next step 

8. REPAIR OR REPLACE HARNESS AND CONNECTOR (PNP SWITCH - STA TERMINAL OF ECM) 
9. CHECK WHETHER DTC OUTPUT RECURS 
   1. Connect Techstream to the DLC3.
   2. Turn the ignition switch ON.
   3. Turn the tester ON.
   4. Clear DTCs (see DTC CHECK / CLEAR  ).
   5. Drive the vehicle at more than 20 km/h (12.43 mph) for over 20 seconds.
   6. Select the following menu items: Powertrain / Engine and ECT / Trouble Code.
   7. Read DTCs.

      Result 

      RESULT CHART
      
      

      Display (DTC Output)	Proceed to
      P0617	A
      No DTC	B

   B: SYSTEM OK 

   A: REPLACE ECM