NOTE:
If the place, time, or radio station in which the malfunction occurred can be specified by asking the customer, it is highly possible that the malfunction cause is the radio wave reception environment. If the malfunction symptom is verified, verify under the same conditions (such as place, time, radio station) as the situation described by the customer. If the malfunction symptom cannot be verified under the same conditions as the situation described by the customer, verify the malfunction symptom at a substitute location (such as where radio wave reception is strong/weak).
If there is any vehicle malfunction complaint lodged by a customer, perform malfunction diagnosis according to the troubleshooting procedure.
If the malfunction does not recur, verify the malfunction cause by performing the following actions:
Based on the repair order form, attempt to drive the vehicle or perform tests to replicate the malfunction, record the data at that time, and detect the malfunction cause.
Shake the wiring harness or connector of the electrical component which is suspected to be the cause of the malfunction, and inspect for malfunction or occurrence of any DTCs.
Inspect the female terminals on the connector of the electric component which is suspected to be the cause of the malfunction for poor connection.
