P1616
Diagnostic trouble codes
DESCRIPTION
The ECM receives signals from each sensor and ECU, then sends signals such as A/T signals, cruise control operation signals, low speed operation signals, brake control operation signals, and radar light emission prohibiting signals, to the distance control ECU. The ECM is the only component that has a function to record and output the DTCs in the dynamic radar cruise control system. Therefore, if the distance control ECU detects a communication error from the ECM, it sends a malfunction signal back to the ECM.| DTC No. |
DTC Detection Condition |
Trouble Area |
| P1616 |
While the dynamic radar cruise control is either preparing for operation or operating, if the ECM continuously receives a logical error signal from the distance control ECU for more than a specific amount of time, the ECM records this logical error code |
|
| U0100 |
While the dynamic radar cruise control is either preparing for operation or operating, if the ECM continuously receives a communication cut off signal from the distance control ECU for more than a specific amount of time, the ECM records this communication cut off code |
|
INSPECTION PROCEDURE
- HINT:
- This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.
| 1.CHECK CAN COMMUNICATION SYSTEM |
- Refer to HOW TO PROCEED WITH TROUBLESHOOTING (Click here).