Menu +
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
Search in posts
Search in pages

BRIGHTNESS OF BLIND SPOT MONITORING (BSM) WARNING LIGHT IS TOO BRIGHT OR TOO DARK [BLIND SPOT MONITORING (BSM) SYSTEM]

< Previous Next >

2016 – MX-5 – i-ACTIVSENSE

BRIGHTNESS OF BLIND SPOT MONITORING (BSM) WARNING LIGHT IS TOO BRIGHT OR TOO DARK [BLIND SPOT MONITORING (BSM) SYSTEM]

NOTE:

Description

  • The brightness level of the blind spot monitoring (BSM) warningr light is low in the daytime (headlights off) (correct level at night).

  • The brightness level of the blind spot monitoring (BSM) warningr light is high at night (headlights on) (correct level in the daytime).

Possible malfunction

  • The blind spot monitoring control module (RH) cannot receive the TNS switch signal.

    • TNS switch (light switch) malfunction (stuck)

    • Instrument cluster malfunction

    • Blind spot monitoring (BSM) control module (LH) malfunction

Diagnostic Procedure

Step

Inspection

Action

1

    VERIFY MALFUNCTION (TNS SIGNAL CONDITION)

  • Display the instrument cluster PID I_ILLUMI_M item using the M-MDS.

    (See PID/DATA MONITOR INSPECTION [INSTRUMENT CLUSTER].)

  • Is the PID On (Night) indicated when the light switch is in the TNS position?

Yes

Go to Step 3.

No

Go to the next step.

2

Yes

Perform the DTC inspection for the start stop unit, instrument cluster and the blind spot monitoring (BSM) control module.

(See DTC INSPECTION [START STOP UNIT].)

(See DTC INSPECTION [INSTRUMENT CLUSTER].)

(See DTC INSPECTION [BLIND SPOT MONITORING (BSM) CONTROL MODULE].)

No

Replace the light switch.

(See LIGHT SWITCH REMOVAL/INSTALLATION.)

3

NOTE:

  • If the blind spot monitoring (BSM) indicator light was turned on by the simulation function, the blind spot monitoring (BSM) indicator light luminosity becomes 92%.

  • Does the PID value indicate 92% when the simulation item is turned on?

Yes

NOTE:

  • If the blind spot monitoring (BSM) system is operating normally, the luminosity of the blind spot monitoring (BSM) indicator light will change according to the light switch condition.

    • Light switch in TNS position: 70%

    • Light switch in position except TNS: 92%

Explain to the customer that the system is normal.

No

Replace the blind spot monitoring (BSM) control module (LH).

(See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION.)

< Previous Next >

© 2014 Mazda North American Operations, U.S.A.