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HOMESERVICE MANUALSMERCURY2011MARINER PREMIER, 2.5 7, AWDREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEMDIAGNOSIS AND TESTINGANTI-LOCK CONTROL - NON-HYBRIDPINPOINT TESTSPINPOINT TEST H: TRACTION CONTROL CANNOT BE DISABLEDNORMAL OPERATION
2011 Mercury Mariner Premier, 2.5 7, AWD

Normal Operation

2011 Mercury Mariner Premier, 2.5 7, AWDSECTION Normal Operation

When the stability/traction control switch is pressed, a ground circuit is momentarily completed. The ABS module detects this ground signal and disables the traction control system. The system is enabled when the switch is pressed a second time or if the ignition switch is cycled.

Circuit CCA15 (YE/GY) connects the ABS module to the stability/traction control switch. The stability/traction control switch is grounded along circuit GD114 (BK/BU). When the switch is pressed, the 2 circuits are momentarily connected and the ABS module receives a ground signal. The ABS module sends a message to the Instrument Cluster (IC) over the High Speed Controller Area Network (HS-CAN) bus to illuminate the stability/traction control OFF indicator (sliding-car OFF icon). The ABS module sends a message over the HS-CAN  bus to the PCM indicating that the wheel-spin is allowed.

If a MyKey™-restricted key is in use that has the AdvanceTrac® always-on feature configured to "on", the stability control system cannot be disabled.

This pinpoint test is intended to diagnose the following: 

  • Wiring, terminals or connectors
  • Stability/traction control switch
  • ABS module
RENDER: 1.0x

NO RELATED

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