DTC B1242 Wireless Tuner Abnormal: Trouble Symptom

The keyless access with push button start function (except for emergency function) does not operate properly.
Operation by the access key button does not function.

CAUTION:

For replacement procedure of keyless access CM, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER".
When the harness comes close to the receiver, the performance of keyless access system operation and wireless operation may reduce. So, when replacing or inspecting the receiver and harness, do not change the route and length of the surrounding harnesses.