DTC Fault Trigger Conditions
DTC | Description | Fault Trigger Conditions |
|---|---|---|
P1464 A/C Demand Out Of Self Test Range | This DTC sets when the PCM senses an A/C request during a PCM self-test. |
Possible Sources
A/C clutch relay Wiring, terminals or connectors PCM FCIM
PINPOINT TEST H : THE A/C (AIR CONDITIONING) IS ALWAYS ON - A/C (AIR
CONDITIONING) MODE ALWAYS COMMANDED ON
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
H1 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY
Carry out the component test on the A/C clutch relay. Refer to Wiring Diagrams Cell 149 for schematic and connector information.
Did the relay pass the component test?
Yes | GO to H2 | |
|---|---|---|
No | INSTALL a new A/C clutch relay. | |
H2 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH FIELD COIL VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
Ignition OFF. Disconnect A/C compressor clutch field coil C100. Disconnect the A/C clutch relay. Ignition ON. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C100-1 | Ground |
Is any voltage present?
Yes | REPAIR the circuit. | |
|---|---|---|
No | GO to H3 | |
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.