Engine Immobilizer System
TERMINALS OF ECUTerminals Of ECU:
1. CHECK TRANSPONDER KEY AMPLIFIER
Pinouts:
a. Disconnect the I13 transponder key amplifier connector and check the continuity of the terminal of the disconnected connector.
If the result is not as specified, the vehicle's side may malfunction.
Pinouts:
b. Reconnect the connector, and check the voltage of each terminal of the connector.
If the result is not as specified, the transponder key amplifier may malfunction.
HINT: If a "waveform" is specified in the table, the actual waveform is provided.
c. Using an oscilloscope, inspect.
NOTE: The waveform provided on this text does not include noise and chattering.
HINT: If the result is not as specified, the transponder key amplifier may malfunction.
Terminals Of ECU:
2. CHECK ECM
a. Check the voltage and continuity of each terminal of the wire harness side connectors.
NOTE:
- The check should be started from the backside of the ECM with the ECM connector being connected.
- Inspect the power source voltage (ignition switch ON: 10 - 14 V) and the body ground (ignition switch OFF: below 5 Ohms (each ground terminal engine ground, body ground)) before the check.
Pinouts:
HINT: If the "waveform" is specified in the table, the waveforms are provided.
b. Using an oscilloscope, inspect.
NOTE: The waveforms provided on this text do not include noise and chattering.
HINT: If the result is not as specified, the ECM may malfunction.