LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2021 >> Mustang Mach-E Select, AWD >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Motor Systems >> Front Electric Drive Assembly - Base Part 2 >> Diagnosis And Testing >> Front Electric Drive Assembly >> Pinpoint Tests >> Pinpoint Test Ab: P0A7A:96
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Pinpoint Test Ab: P0A7A:96

  1. NOTE: The Secondary Inverter System Controller (S-ISC) is referred to as the SOBDMB (Secondary On-Board Diagnostic Control Module B) in the scan tool.

    Normal Operation and Fault Conditions 

    REFER to: Front Electric Drive Assembly - System Operation and Component Description .

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    SOBDMB P0A7A:96 Generator Inverter Performance: Component Internal Failure This DTC sets when the module detects an internal hardware issue.

    Possible Sources 

    • Secondary Inverter System Controller (S-ISC)

  2. AB1 CHECK FOR SECONDARY INVERTER SYSTEM CONTROLLER (S-ISC) DIAGNOSTIC TROUBLE CODES (DTCS)

    • Ignition ON.

    • Using a diagnostic scan tool, run the Secondary Inverter System Controller (S-ISC) self-test.

    Are any Secondary Inverter System Controller (S-ISC) DTCs other than P0A78:96 present? 

    Yes  DIAGNOSE all other Secondary Inverter System Controller (S-ISC) DTCs. REFER to Diagnostic Trouble Code (DTC) Chart .
    No  GO to  AB2
  3. AB2 CLEAR AND READ THE SECONDARY INVERTER SYSTEM CONTROLLER (S-ISC) DIAGNOSTIC TROUBLE CODES (DTCS)

    • CLEAR the Secondary Inverter System Controller (S-ISC) DTCs.

    • Using a diagnostic scan tool, run the Secondary Inverter System Controller (S-ISC) self-test.

    Is DTC P0A7A:96 the only DTC from the Secondary Inverter System Controller (S-ISC)? 

    Yes  CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new Secondary Inverter System Controller (S-ISC). REFER to: Inverter System Controller [SOBDMB] .
    No  DIAGNOSE all other Secondary Inverter System Controller (S-ISC) DTCs. REFER to Diagnostic Trouble Code (DTC) Chart .