Inspection Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch ON and turn the tester ON.
3. Select the item below from the Data List, and read the value displayed on the Techstream.

   METER 

   DATA LIST - METER
   
   

   Item	Measurement Item/Range (Display)	Normal Condition	Diagnostic Note
   TACHOMETER	Engine speed/Min.: 0 rpm, Max.: 12,750 rpm	Approximately same as actual engine speed (When engine is running)	-

   OK: 

   Engine speed displayed on the tester is approximately the same as the actual engine speed. 

NG: GO TO SFI SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

OK: Go to next step 

1. Disconnect the E13 combination meter connector.
Fig 1: Identifying ECM And Combination Meter Connectors Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the E46 ECM connector.
3. Measure the resistance.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   E13-12 (S) - E46-1 (TACH)	Below 1 Ω
   E13-12 (S) or E46-1 (TACH) - Body ground	10 kΩ or higher

4. Reconnect the ECM connector.
5. Reconnect the combination meter connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL  )