DESCRIPTION
The ECM is the only component that has a function to store and output DTCs in the dynamic radar cruise control system. Therefore, if the driving support ECU detects a communication error from the ECM, it sends a malfunction signal back to the ECM.
DTC Code | DTC Detection Condition | Trouble Area |
---|---|---|
P1616 | While the vehicle speed is 50 km/h (31 mph) or more with the cruise control switch on, the ECM continuously receives a logical error signal from the driving support ECU for 1 second. |
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INSPECTION PROCEDURE
PROCEDURE
REPLACE ECM
Replace the ECM Click here.
NEXT |
CHECK FOR DTC
Clear the DTCs Click here.
Perform the following to make sure the DTC detection conditions are met.
Tech Tips
If the detection conditions are not met, the system cannot detect the malfunction.
Drive the vehicle at a speed of 50 km/h (31 mph) or more.
Turn the cruise control switch on.
Check for DTCs Click here.
OK |
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DTC P1616 is not output. |
Result | Proceed to |
---|---|
OK | A |
NG (for LHD) | B |
NG (for RHD) | C |
B |
REPLACE DRIVING SUPPORT ECU Click here |
C |
REPLACE DRIVING SUPPORT ECU Click here |
A |
END (ECM IS DEFECTIVE)