Inspection Procedure: Procedure
WARNING: This page is about a different car, the 2011 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - BATTERY)
- Disconnect the transponder key ECU assembly connector.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition E21-1 (+B) - Body ground Always 11 to 14 V E21-2 (IG) - Body ground Ignition switch off Below 1 V E21-2 (IG) - Body ground Ignition switch ON 11 to 14 V
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE FUSE
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - BODY GROUND)
- Measure the resistance according to the value(s) in the table below.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard Resistance
Tester Connection Condition Specified Condition E21-16 (GND) - Body ground Always Below 1 Ω
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 3
- Measure the resistance according to the value(s) in the table below.
- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE