MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Body & Paint

Pinpoint Test - DTC: S

501-20B Supplemental Restraint System

2016 MustangReference 1,931 / 6,619HTML edition
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For DTC B1404:12, GO to A10

No

This is an intermittent fault when present as a Continuous Memory Diagnostic Trouble Code (CMDTC) only. If DTC U3003:16 or U3003:17 is also retrieved on-demand, REFER to: Pinpoint Test - DTC: AJ (501-20B Supplemental Restraint System, Diagnosis and Testing).

If DTC U3003:16 or U3003:17 is not retrieved on-demand during self-test, DIAGNOSE the driver side airbag Continuous Memory Diagnostic Trouble Codes (CMDTCs). For DTC B1404:13 or B1404:1A, GO to A13 For DTC B1404:11, GO to A14 For DTC B1404:12, GO to A15

A2 CHECK THE LEFT SIDE AIRBAG DEPLOYMENT CONTROL (DEPLOY_10_R) PID (PARAMETER IDENTIFICATION)

Using a diagnostic scan tool, view RCM Parameter Identifications (PIDs). Monitor and record the resistance value displayed by the DEPLOY_10_R PID.

Does the PID value read between 1.44 and 3.52 ohms?

Yes

GO to A12

No

GO to A3

A3 CHECK THE LEFT SIDE AIRBAG DEPLOYMENT CONTROL (DEPLOY_10_R) PID (PARAMETER IDENTIFICATION) WHILE CARRYING OUT THE HARNESS TEST

While monitoring the DEPLOY_10_R PID, carry out the harness test of the driver side airbag circuits and accessible connectors (including any inline connectors) by wiggling and flexing the wire harness and connectors frequently. Record the resistance value indicated by the PID.

Does the PID value read between 1.44 and 3.52 ohms while carrying out the harness test?

Yes

DEPOWER the SRS and REPAIR the connector, terminals or wire harness as needed. Refer to Wiring Diagrams Cell 5 for schematic and connector information. GO to A17

No

For PID value less than 1.44 ohms, GO to A4 For PID value greater than 3.52 ohms, GO to A6

A4 CHECK THE DRIVER SIDE AIRBAG DEPLOYMENT CONTROL DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (LOW RESISTANCE INDICATED)

NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.

Ignition OFF. Depower the SRS. REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures). Disconnect Driver Side Airbag (Inline) C3206. Repower the SRS. Do not prove out the SRS at this time. REFER to: Supplemental Restraint System (SRS) Repowering (501-20B Supplemental Restraint System, General Procedures). Ignition ON. Using a diagnostic scan tool, perform RCM self-test.

Source reference 1931

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.