DTC U2302 Immobilizer Anti-Scanning Mode (4JJ3 without DPD)

1. DTC U2302 description

The ECM communicates with the wireless access module and performs the immobilizer function. The ECM sends a request signal to the wireless access module. The ECM receives a response signal from the wireless access module. Both communication signals are sent and received via the CAN communication circuit. If the specified or greater number of request signals from the ECM is received during an ignition cycle, the wireless access module transitions to the anti-scan mode. If the ECM receives a signal from the wireless access module which has transitioned to the anti-scan mode, the DTC is set.

2. Condition for setting DTC U2302

Condition for running the DTC

The ignition switch is ON.

Condition for setting the DTC

The ECM receives a signal from the wireless access module which has transitioned to the anti-scan mode.

3. Action taken when DTC U2302 sets

Euro4: The ECM does not illuminate the MIL or SVS indicator light. Refer to Action taken when DTC sets - Type D (Euro4).
Except Euro4: The ECM does not illuminate the check engine warning light. Refer to Action taken when DTC sets - Type D (Except Euro4).

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC type definitions".

The ECM inhibits engine startup.

4. Condition for clearing DTC U2302

Refer to Condition for clearing the DTC - Type D.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC type definitions".