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 Electrical Diagrams.

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 (Intelligent Access) key. When the IA (Intelligent Access) key is activated it sends a high frequency signal to the Remote Functions Receiver (RFR) module. The RFR (Remote Functions Receiver) module communicates with the RFA (Remote Function Actuator) module. If the RFA (Remote Function Actuator) module determines that a programmed IA (Intelligent Access) 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 (Intelligent Access) key is within a few inches of the charger. If a concern is observed, move the IA (Intelligent Access) key away from the charger and attempt to start the vehicle.

- DTC B10D7:81 (PATS (Passive Anti-Theft System) Key: Invalid Serial Data Received)- sets when the RFA (Remote Function Actuator) module receives a partial or corrupt IA (Intelligent Access) key code.

This pinpoint test is intended to diagnose the following:

- Environmental interference

- IA (Intelligent Access) 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 (Intelligent Access) KEYS

- Verify the correct IA (Intelligent Access) keys are used with the vehicle. Compare the keys with the one shown in Anti-Theft Description and Operation in the Description and Operation portion.

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 Key Programming 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 (Intelligent Access) 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 Key Programming Using Diagnostic Equipment. CLEAR the DTCs. REPEAT the self-test.