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 the intelligent tester. 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 INTELLIGENT TESTER (STARTER SIGNAL) 
   1. Connect the intelligent tester to the DLC3.
   2. Turn the ignition switch ON and turn the tester ON.
   3. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / STARTER SIG.
   4. Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.

      OK 

      TESTER OPERATION SPECIFIED CONDITION REFERENCE
      
      

      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 
   1. Disconnect the B26 PNP switch connector.
   2. Measure the resistance when the transmission gear selector lever is moved to each position.

      Standard resistance 

      CONNECTOR TERMINALS RESISTANCE REFERENCE AND CONDITION
      
      

      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

      Fig 1: Identifying B26 PNP Switch Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   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 INTELLIGENT TESTER (STARTER SIGNAL) 
   1. Connect the intelligent tester to the DLC3.
   2. Turn the ignition switch ON and turn the tester ON.
   3. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / STARTER SIG.
   4. Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.

      OK 

      TESTER OPERATION SPECIFIED CONDITION REFERENCE
      
      

      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.
   2. Check the resistance.

      Standard resistance 

      CONNECTOR TERMINALS RESISTANCE REFERENCE AND CONDITION
      
      

      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

      Fig 2: Identifying E3 Ignition Switch Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   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 INTELLIGENT TESTER (STARTER SIGNAL) 
   1. Connect the intelligent tester to the DLC3.
   2. Turn the ignition switch ON and turn the tester ON.
   3. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / STARTER SIG.
   4. Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.

      OK 

      TESTER OPERATION SPECIFIED CONDITION REFERENCE
      
      

      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 the intelligent tester 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: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
   7. Read DTCs.

      Result 

      DTC OUTPUT RESULT REFERENCE
      
      

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

   B: SYSTEM OK 

   A: REPLACE ECM