Pinpoint Test R : DTCS 5-3 Or 5-4: Notes
WARNING: This page is about a different car, the 2015 Ford Fiesta. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Manual Climate Control System for schematic and connector information.
Normal Operation and Fault Conditions
The HVAC control module is supplied constant voltage and ground. Excessive resistance or an open in one or more of these circuits, a discharged battery or an inoperative charging system will result in the HVAC control module setting a DTC.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| 5-3 | Battery Voltage Low | This DTC sets when the HVAC control module senses battery voltage is less than 8 volts for more than 2 seconds. |
| 5-4 | Battery Voltage High | This DTC sets when the HVAC control module senses battery voltage is greater than 16 volts for more than 2 seconds. |
Possible Sources
- Wiring, terminals or connectors
- HVAC control module