Inspection Procedure

1. When turning the ignition switch to the START position, check if the starter motor starts.

OK: CHECK FOR INTERMITTENT PROBLEMS 

NG: Go to Next Step 

1. Connect the Techstream to the DLC3.
2. Enter the following menu: Powertrain/Engine and ECT/Data List/Starter Signal.
3. Confirm the starter signal status when the ignition switch is operated.

   OK 

   IGNITION SWITCH POSITION
   
   

   Ignition Switch Position	Starter Signal
   ON	OFF
   Start	ON

OK: Go to step  5

NG: Go to Next Step 

1. Measure the voltage of the E7 ECM connector while cranking the engine (ignition switch is in the START position).

   Standard voltage 

   STANDARD VOLTAGE
   
   

   Tester Connection	Specified Condition
   STA (E7-11) - E1 (E7-1)	9 to 14 V
   STSW (E7-12) - E1 (E7-1)

   Fig 1: Inspecting ECM (STA And STSW Voltage)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result 

   RESULT REFERENCE
   
   

   Terminal STSW	Terminal STA	Proceed to
   9 to 14 V	9 to 14 V	A
   	0 V	B
   0 V		C

B: REPLACE ECM 

C: Go to step  9

A: Go to Next Step 

1. Disconnect the P1 park/neutral position switch connector.
2. Measure the resistance between each terminal shown below when the shift lever is moved to each position.

   Standard resistance 

   STANDARD RESISTANCE
   
   

   Shift Position	Tester Connection	Specified Condition
   P	2 - 6, 4 - 5	Below 1 Ω
   R	1 - 2
   N	2 - 9, 4 - 5
   D	2 - 7
   2	2 - 3
   L	2 - 8

3. Reconnect the park/neutral position switch connector.
   Fig 2: Inspecting Park/Neutral Position Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE PARK/NEUTRAL POSITION SWITCH 

OK: CHECK AND REPAIR HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM) 

1. Remove the starter relay from the engine room R/B
2. Measure the resistance of the starter relay.

   Standard resistance 

   STANDARD RESISTANCE
   
   

   Tester Connection	Specified Condition
   3-5	10 kΩ or higher
   3-5	Below 1 Ω (when battery voltage applied to terminals 1 and 2)

3. Reinstall the starter relay.

NG: REPLACE STARTER RELAY 

Fig 3: Inspecting Starter Relay

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Check the harness and the connector between the park/neutral position switch connector and the starter relay.
   1. Disconnect the P1 park/neutral position switch connector.
   2. Remove the starter relay from the engine room R/B.
   3. Measure the resistance between the wire harness side connectors.

      Standard resistance (Check for open) 

      STANDARD RESISTANCE
      
      

      Tester Connection	Specified Condition
      Park/Neutral position switch (P1-5) - Starter relay (2)	Below 1 Ω

      Standard resistance (Check for short) 

      STANDARD RESISTANCE
      
      

      Tester Connection	Specified Condition
      Park/Neutral position switch (P1-5) or Starter relay (2) Body ground	10 kΩ or higher

   4. Reinstall the starter relay.
   5. Reconnect the park/neutral position switch.
2. Check the harness and the connector between the starter relay and the body ground.
   1. Remove the starter relay from the engine room R/B.
   2. Measure the resistance between the starter relay and the body ground.
      Fig 4: Checking Harness And Connector (Park/Neutral Position Switch - Starter Relay, Starter Relay - Body Ground)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance (Check for open) 

      STANDARD RESISTANCE
      
      

      Tester Connection	Specified Condition
      Starter relay (1) - Body ground	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to Next Step 

1. Remove the Starter relay from the engine room R/B.
2. Measure the voltage of the engine room R/B and body ground.

   Standard voltage 

   STANDARD VOLTAGE
   
   

   Tester Connection	Specified Condition
   Engine room R/B (Starter relay terminal 5) - Body ground	9 to 14 V

3. Reinstall the Starter relay.

NG: CHECK AND REPAIR HARNESS AND CONNECTOR (STARTER RELAY - BATTERY) 

Fig 5: Inspecting Engine Room Relay Block (Starter Relay Voltage)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Inspect the starter assembly (See INSPECTION ).

NG: REPAIR OR REPLACE STARTER ASSEMBLY 

OK: CHECK AND REPAIR HARNESS OR CONNECTOR (STARTER RELAY - STARTER, STARTER BATTERY) 

1. Remove the lower finish panel.
2. Disconnect the 118 ignition switch connector.
3. Measure the resistance of the connector terminals shown in the chart below.

   Standard resistance 

   STANDARD RESISTANCE
   
   

   Switch Position	Tester Connection	Specified Condition
   LOCK	All terminals	10 kΩ or higher
   ACC	2-3	Below 1 Ω
   ON	2-3 2 - 4, 6 - 7
   START	1 - 2, 2 - 4 6 - 7, 7 - 8

4. Reconnect the 118 ignition switch connector.

NG: REPLACE IGNITION SWITCH ASSEMBLY 

Fig 6: Inspecting Ignition Switch Assembly

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: CHECK AND REPAIR HARNESS OR CONNECTOR (ECM - IGNITION SWITCH, IGNITION SWITCH BATTERY)