2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Hazard and Horn Reminder

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

BCM output to IPDM E/R for hazard and horn reminder signal as DATA LINE (CAN H line and CAN L line). The hazard and horn reminder has C mode (horn chirp mode) and S mode (non-horn chirp mode).

Operating function of hazard and horn reminder 

Fig 1: Operating Function Of Hazard And Horn Reminder Table
G02161863Courtesy of NISSAN MOTOR CO., U.S.A.

How to change hazard and horn reminder mode 

With CONSULT-II

Hazard and horn reminder can be changed using "WORK SUPPORT" mode in "MULTI ANSWER BACK SET".

Without CONSULT-II

When LOCK and UNLOCK signals are sent from the key fob for more than 2 seconds at the same time, the hazard and horn reminder mode is changed and hazard warning lamp flashes and horn sounds as follows:

Fig 2: Remote Keyless Entry System Lock And Unlock Signals
G02161864Courtesy of NISSAN MOTOR CO., U.S.A.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.