Yes | GO to G6 | |
|---|---|---|
No | DIAGNOSE the suspect temperature sensor. REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual, Section 3 Symptom Charts. | |
G6 COMPARE THE EVAPORATOR TEMPERATURE SENSOR TO THE PCM (POWERTRAIN CONTROL MODULE) AMBIENT AIR TEMPERATURE (AAT) PID (PARAMETER IDENTIFICATION)
Ignition OFF. Disconnect Evaporator temperature sensor C296. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C296-1 (component side) | C296-2 (component side) |
Compare the resistance values to the table below:
Ambient Temperature °F (°C) | Resistance ohms |
-39.9°F (-40°C) | 98,625 - 103,275 ohms |
-4.0°F (-20°C) | 28,640 - 29,600 ohms |
32.0°F (°C) | 9695 - 9895 ohms |
68.0°F (20°C) | 3675 - 3810 ohms |
77.0°F (25°C) | 2950 - 3050 ohms |
86.0°F (30°C) | 2370 - 2565 ohms |
103.9°F (40°C) | 1565 - 1635 ohms |
Ignition ON. Using a diagnostic scan tool, view PCM Parameter Identifications (PIDs). Monitor the AAT PID.
Is the resistance within the specified values for the temperatures?
Yes | GO to G7 | |
|---|---|---|
No | INSTALL a new evaporator temperature sensor. REFER to: Evaporator Temperature Sensor (412-00 Climate Control System - General Information, Removal and Installation). | |
G7 VERIFY THE GRILLE SHUTTER OPERATION USING THE PCM (POWERTRAIN CONTROL MODULE) GRILL SHUTTER A POSITION - COMMANDED (GRILL_A_CMD) PID (PARAMETER IDENTIFICATION)
Start the engine and allow it to idle for at least 30 seconds to allow for the grille shutter calibration to complete. Using a diagnostic scan tool, view PCM PID. Using a diagnostic scan tool, select the PCM PID GRILL_A_CMD and command the grille shutter from 100% (open) to 0% (closed) while observing the grille shutter operation from the front of the vehicle.
Does the grille shutter fully open and close when commanded by the scan tool?
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.