DTC Advanced Diagnostics: P16EB (2.0L Engine) (2024 2025)

DTC P16EB  : LIN Communication Error (Powertrain Control Module (PCM)-Active Exhaust)

General Description 

Courtesy of HONDA, U.S.A., INC.

The local interconnect network (LIN) transmits/receives signals to/from the active exhaust valve actuator. If the powertrain control module (PCM) receives incorrect information from the active exhaust valve actuator, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type 

Execution	Continuous
Sequence	None
Duration	5 seconds or more
DTC Type	One drive cycle, MIL off

Enable Conditions 

Condition	Minimum	Maximum
Elapsed time after the vehicle is turned to the ON mode	3 seconds	-
12 volt battery voltage [Battery]*	10.04 V	-

*: For at least 5 seconds

[ ]: HDS Parameter

Malfunction Threshold 

Any of the conditions is met for at least 5 seconds:

• Checksum error

  There is a mismatch in the checksum.

• Frame error

  There is a deviation in the LIN frame.

• Header timeout error

  There is a fault in the LIN line caused by problems with the physical layer connection.

• Message timeout error

  The slave node is unable to respond as an acknowledgment to the header frame from the master node.

• Overrun error

  LIN frame has been overwritten in the receive buffer by another frame before the previous frame was read.

Possible Cause 

Diagnosis Details 

Conditions for setting the DTC 

When a malfunction is detected, a Pending DTC, a Confirmed DTC, the freeze data, and the on-board snapshot are stored in the PCM memory. The MIL does not come on.

Conditions for clearing the DTC 

The Pending DTC, the Confirmed DTC, the freeze data, and the on-board snapshot can be cleared with the scan tool clear command.