Pinpoint Test E : B10D9:11, B10D9:12, B10D9:31 Or B10D9:87: Notes
Diagnostic Overview
Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to Diagnostic Methods for information about these practices.
Refer to Passive Anti-Theft System , Passive Anti-Theft System for schematic and connector information.
Normal Operation and Fault Conditions
The RFA module uses the backup transceiver to operate the PATS in the event of a failure of any passive start antenna, a discharged battery in the IA key, or a communication concern with the TPM module. The backup transceiver is also used for IA key programming.
The backup transceiver receives voltage and ground directly from the RFA module. The RFA module controls the backup transceiver through the dedicated clock and data circuits.
RFA Module DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B10D9:11 | PATS Transponder: Circuit Short to Ground | Sets when the RFA module detects a short to ground from the transceiver voltage supply circuit. |
| B10D9:12 | PATS Transponder: Circuit Short to Battery | Sets when the RFA module detects a short to voltage from the transceiver voltage supply circuit. |
| B10D9:31 | PATS Transponder: No Signal | Sets when the RFA module does not receive a signal from the backup transceiver. |
| B10D9:87 | PATS Transponder: Missing Message | Sets when the RFA module cannot initialize the backup transceiver. |
Possible Sources
- Wiring, terminals or connectors
- Backup transceiver
- RFA module