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DTC B1417:11/B1417:12/B1417:29/B1417:2B/B1417:4A/B1417:87/B1417:96 [SAS CONTROL MODULE (STANDARD DEPLOYMENT CONTROL SYSTEM)]

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2016 – MX-5 – Restraints

DTC B1417:11/B1417:12/B1417:29/B1417:2B/B1417:4A/B1417:87/B1417:96 [SAS CONTROL MODULE (STANDARD DEPLOYMENT CONTROL SYSTEM)]

System malfunction location

  • B1417:11: Passenger-side crash zone sensor circuit short to body ground

  • B1417:12: Passenger-side crash zone sensor circuit short to power supply

  • B1417:29, B1417:96: Passenger-side crash zone sensor internal malfunction

  • B1417:2B: Short circuit to passenger-side crash zone sensor and other air bag sensor circuits

  • B1417:4A: Passenger-side crash zone sensor ID error (assembly incorrect)

  • B1417:87: Signal reception error from passenger-side crash zone sensor

Detection condition

WARNING:

  • Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection according to only the detection conditions may cause injury due to an operating error, or damage the system. When performing an inspection, always follow the inspection procedure.

  • Wiring harness between the passenger-side crash zone sensor and SAS control module has a malfunction

  • Passenger-side crash zone sensor has a malfunction

Fail-safe function

Not applicable

Possible cause

  • Passenger-side crash zone sensor assembly incorrect

  • Passenger-side crash zone sensor connector malfunction

  • Short circuit in the terminal or wiring harness between the passenger-side crash zone sensor and SAS control module

  • Short circuit to power supply or body ground in the wiring harness between the passenger-side crash zone sensor and SAS control module

  • Open circuit in the wiring harness between the passenger-side crash zone sensor and SAS control module

  • Passenger-side crash zone sensor malfunction

  • SAS control module malfunction

Diagnostic Procedure

Step

Inspection

Action

1

INSPECT PASSENGER-SIDE CRASH ZONE SENSOR

WARNING:

Yes

Go to the next step.

No

Correctly install the passenger-side crash zone sensor.

(See CRASH ZONE SENSOR REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM].)

Then go to the next step.

2

INSPECT PASSENGER-SIDE CRASH ZONE SENSOR CONNECTOR

Yes

Replace the malfunction part, then go to step 6.

No

Go to the next step.

3

INSPECT PASSENGER-SIDE CRASH ZONE SENSOR CIRCUIT FOR SHORT TO GROUND

NOTE:

  • Inspect for continuity while shaking the wiring harness between the SAS control module and passenger-side crash zone sensor.

  • Is there continuity?

Yes

Refer to the wiring diagram and verify whether or not there is a common connector between SAS control module terminal and passenger-side crash zone sensor terminal.

    If there is a common connector:

  • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.

  • Replace the malfunctioning part.

    If there is no common connector:

  • Replace the wiring harness which has a short to ground.

Go to Step 6.

No

Go to the next step.

4

INSPECT PASSENGER-SIDE CRASH ZONE SENSOR CIRCUIT FOR OPEN CIRCUIT

  • Passenger-side crash zone sensor and SAS control module connectors are disconnected.

  • Inspect for continuity between the following terminals (wiring harness-side):

    • Passenger-side crash zone sensor terminal A???SAS control module terminal 2H

    • Passenger-side crash zone sensor terminal B???SAS control module terminal 2L

NOTE:

  • Inspect for continuity while shaking the wiring harness between the SAS control module and passenger-side crash zone sensor.

  • Is there continuity?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify whether or not there is a common connector between SAS control module terminal and passenger-side crash zone sensor terminal.

    If there is a common connector:

  • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.

  • Replace the malfunctioning part.

    If there is no common connector:

  • Replace the wiring harness which has an open circuit.

Go to Step 6.

5

INSPECT PASSENGER-SIDE CRASH ZONE SENSOR CIRCUIT FOR SHORT TO POWER SUPPLY

  • Passenger-side crash zone sensor and SAS control module connectors are disconnected.

  • Connect the negative battery cable.

    (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

  • Switch the ignition ON (engine off or on).

  • Measure the voltage at the following terminals (wiring harness-side):

    • SAS control module terminal 2H

    • SAS control module terminal 2L

NOTE:

  • Measure the voltage while shaking the wiring harness between the SAS control module and passenger-side crash zone sensor.

  • Is the voltage 0 V?

Yes

Replace the passenger-side crash zone sensor, then go to the next step.

(See CRASH ZONE SENSOR REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM].)

No

Refer to the wiring diagram and verify whether or not there is a common connector between SAS control module terminal and passenger-side crash zone sensor terminal.

    If there is a common connector:

  • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.

  • Replace the malfunctioning part.

    If there is no common connector:

  • Replace the wiring harness which has a short to power supply.

Go to the next step.

6

PERFORM SAS CONTROL MODULE DTC INSPECTION

Yes

Repeat the inspection from Step 1.

No

DTC troubleshooting completed.

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