Pinpoint Test G: DTC B10D7:81

Anti-Theft - With Intelligent Access (IA)

Pinpoint Test G: DTC B10D7:81

Refer to Wiring Diagram Set 117, Remote Keyless Entry and Alarm for schematic and connector information. Diagrams By Number

Normal Operation

When the START/STOP switch is pressed, the Remote Function Actuator (RFA) activates all 3 passive start antennas, which send out a low frequency signal. Each passive start antenna has an approximate range of 1 m (3 ft) and are placed in different locations to provide full coverage inside the vehicle. If an Intelligent Access (IA) key is within range of a passive start antenna, the low frequency signal activates the IA key. When the IA key is activated it sends a high frequency signal to the Remote Functions Receiver (RFR) module. The RFR module communicates with the RFA module. If the RFA module determines that a programmed IA key is in the vehicle, it allows the ignition to transition out of off or let the engine start.

NOTE: Some brands/types of mobile phone or laptop computer chargers may cause interference that could lead to a Passive Anti-Theft System (PATS) no-start if the IA key is within a few inches of the charger. If a concern is observed, move the IA key away from the charger and attempt to start the vehicle.

- DTC B10D7:81 ( PATS Key: Invalid Serial Data Received) - sets when the RFA module receives a partial or corrupt IA key code.

This pinpoint test is intended to diagnose the following:

- Environmental interference
- IA key

PINPOINT TEST G: DTC B10D7:81

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

-------------------------------------------------
G1 CHECK THE IA KEYS

- Verify the correct IA keys are used with the vehicle. Compare the keys with the one shown in Anti-Theft Anti-Theft - Passive Anti-Theft System (PATS) in the Description and Operation information.
- Are the correct keys being used?

Yes
GO to G2.

No
OBTAIN the correct key(s) for the vehicle. PROGRAM the new key(s). REFER to Key Programming Using Diagnostic Equipment Using Diagnostic Equipment. CLEAR the DTCs. REPEAT the self-test.

-------------------------------------------------
G2 CHECK FOR ENVIRONMENTAL INTERFERENCE

- Check for the use of any charger or other wireless device that can cause interference with the IA key. If any device is found, remove the device and attempt to start the engine.
- Does the engine start?

Yes
INFORM the customer of the cause of the concern and the normal operation of the vehicle.

No
DISCARD the key in question and PROGRAM a new key. REFER to Key Programming Using Diagnostic Equipment Using Diagnostic Equipment. CLEAR the DTCs. REPEAT the self-test.

-------------------------------------------------