Yes | GO to G8 | |
|---|---|---|
No | DIAGNOSE the active grille shutter is inoperative or does not operate correctly. REFER to: Active Grille Shutter (501-02 Front End Body Panels, Diagnosis and Testing). | |
G8 CHECK THE FCIM (FRONT CONTROLS INTERFACE MODULE) A/C (AIR CONDITIONING) SWITCH (CC_SW_AC) PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) ON
Using a diagnostic scan tool, view FCIM Parameter Identifications (PIDs). Monitor the CC_SW_AC PID.
Does the PID display Active?
Yes | GO to G9 | |
|---|---|---|
No | GO to G17 | |
G9 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) REQUEST SIGNAL (AC_REQ) PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) ON
Start the engine. Using a diagnostic scan tool, monitor the PCM AC_REQ PID. On the HVAC controls, select PANEL and then press the A/C button (indicator on).
Does the PID display Yes when the button is pressed?
Yes | GO to G11 | |
|---|---|---|
No | GO to G10 | |
G10 RESET THE AMBIENT AIR TEMPERATURE (AAT) SENSOR
On the HVAC controls, press the A/C (air conditioning) and Recirc buttons simultaneously, then release both. Within 2 seconds press A/C button again. Start the engine. On the HVAC controls, set the temperature to full cold, select PANEL and select the A/C button (indicator on).
Does the A/C compressor turn on?
Yes | RETEST the A/C system for normal operation. REFER to: Refrigerant System Tests - 2.3L EcoBoost (201kW/273PS) (412-00 Climate Control System - General Information, General Procedures). REFER to: Refrigerant System Tests - 3.7L Duratec (227kW/301PS) (412-00 Climate Control System - General Information, General Procedures). REFER to: Refrigerant System Tests - 5.0L 32V Ti-VCT (412-00 Climate Control System - General Information, General Procedures). REFER to: Refrigerant System Tests - 5.2L 32V Ti-VCT (412-00 Climate Control System - General Information, General Procedures). | |
|---|---|---|
No | GO to G11 | |
G11 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) COMPRESSOR COMMANDED STATE (ACC_CMD) PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) COMMANDED ON
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.