P1676 - FAULT CODE - OBD2

POST UPDATED IN February, 2023

P1676 Code failures by brands

P1676 ACURA, HONDA: ABS/TCS CONTROL MODULE COMMUNICATION MALFUNCTION

Description of DTC code P1676

Various electronic systems are used to regulate and control certain vehicle functions. In the case of ABS (Anti-lock Braking System), its function is to prevent the wheels from locking suddenly when the brakes are applied abruptly. This system applies the brakes in such a way that the driver has control of the brakes in various situations, in order to reduce braking distances in emergencies.

While ABS is in charge of braking regulation, TCS (Traction Control System) prevents the wheels from skidding or slipping during acceleration. Its performance is more noticeable in low-traction road conditions, such as rain or snow, providing sufficient throttle application and intervening when there is excessive power. With this, a balance of throttle and traction is achieved.

The P1676 OBDII fault code is stored in the case of Honda and Acura vehicles, when there is a problem in the communication of the module that controls the ABS/TCS system. One of the data lines from the TCM to the PCM is malfunctioning.

Symptoms of fault code P1676

Causes of OBD2 P1676

The reasons for setting the P1676 OBD2 diagnostic code are:

  • ABS/TCS Control Module wires or connectors could have been damaged.
  • The ABS/TCS Control Module circuit may be open or shorted.
  • The ABS/TCS Control Module may be in bad condition.

Possible solutions of the DTC code P1676

The steps to follow to correct the DTC P1676 OBDII code are:

  • Consult the Technical Service Bulletins.
  • Inspect all wiring related to the ABS/TCS and the module that controls these systems. Look for deficiencies caused by corrosion, wear, or burns and if such conditions are discovered, make the appropriate repairs.
  • Disconnect the negative battery cable and check for continuity between the body ground and the terminal on the PCM corresponding to the ABS/TCS Control Module. If there is continuity it is due to a short circuit, repair it.
  • If after checking the electrical values of the ABS/TCS Control Module you find no inconsistencies, check the condition of the ABS/TCS Control Module. Before replacing it, make sure that no symptoms or indications of damage to the electrical components are present.

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