Diagnostic Routine H

Diagnostic Routine H

Diagnostic Overview

B102B:00

Normal Operations and Fault Conditions

When the START/STOP switch is pressed, the RFA (Remote Function Actuator) module activates all 3 passive start antennas which send out a low frequency signal. If an IA (Intelligent Access) 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 RFR (Remote Functions Receiver) module. The RFR (Remote Functions Receiver) module communicates the IA (Intelligent Access) key information to the RFA (Remote Function Actuator) module.

NOTE: Some brands/types of mobile phone or laptop computer chargers may cause interference that could lead to a PATS (Passive Anti-Theft System) 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 Fault Trigger Conditions






Visual Inspection and Diagnostic Pre-checks

- IA (Intelligent Access) key

Pinpoint Test

1. CHECK THE IA (Intelligent Access) KEYS

1. Verify the correct IA (Intelligent Access) keys are used with the vehicle. REFER to Intelligent Access (IA) Key .

Are the correct keys being used?






2. CHECK FOR ENVIRONMENTAL INTERFERENCE

1. 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?