Pinpoint Test H: The Driver Door Intelligent Access (IA) Is Inoperative
Handles, Locks, Latches and Entry Systems
Pinpoint Test H: The Driver Door Intelligent Access (IA) Is Inoperative
Refer to Wiring Diagram Set 117, Remote Keyless Entry and Alarm for schematic and connector information. Diagrams By Number
Normal Operation
The Remote Function Actuator (RFA) module controls the unlocking of the driver door when requested by the Intelligent Access (IA) feature. When the doors are locked and the keyless entry keypad is touched, the RFA module activates the driver door external antenna, which sends out a low frequency signal. If an IA key is within 1 m (3 ft) of the exterior of the driver door, the low frequency signal activates the IA key. When the IA key is activated, it sends a high frequency signal back to the Remote Functions Receiver (RFR) module. Once the RFR module receives the IA key information, it sends it to the RFA module. If the RFA module determines that it was a programmed IA key, it unlocks the driver door if stepped unlock is enabled, or all doors if stepped unlock is disabled.
- DTC B11CA:01 (Driver Door External Antenna: General Electrical Failure) - an on-demand DTC that sets when the RFA module detects that the driver door external antenna circuits are open, shorted to ground or shorted to voltage.
- DTC B11CA:13 (Driver Door External Antenna: Circuit Open) - an on-demand DTC that sets when the RFA module detects that the driver door external antenna resistance is out of range.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Driver door external antenna (part of the exterior driver door handle)
- Keyless entry keypad concern
- IA key concern
- RFR module concern
- RFA module
PINPOINT TEST H: THE DRIVER DOOR IA IS INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
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H1 CHECK THE RKE OPERATION
- Press the unlock button on an IA key.
- Does the driver door unlock?
Yes
GO to H2.
No
GO to Pinpoint Test J. Pinpoint Test J: The Remote Keyless Entry (RKE) Transmitter Is Inoperative
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H2 CHECK THE DRIVER DOOR LOCK OPERATION
- Lock and unlock the doors using a door lock control switch.
- Does the driver door lock and unlock?
Yes
GO to H3.
No
GO to Symptom Chart - Electrical. Symptom Chart - Electrical
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H3 CHECK THE KEYLESS ENTRY KEYPAD OPERATION
- Touch anywhere on the keyless entry keypad.
- Does the round indicator on the top of the keypad illuminate?
Yes
GO to H4.
No
GO to Pinpoint Test F. Pinpoint Test F: The Doors Do Not Lock/Unlock Using The Keyless Entry Keypad
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H4 CHECK THE IA KEY
- Place the IA key on the center console and start the engine.
- Does the engine start?
Yes
GO to H5.
No
REFER to the symptom chart in Anti-Theft - Passive Anti-Theft System (PATS) Testing and Inspection.
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H5 CHECK THE DRIVER DOOR IA ANTENNA
- Ignition OFF.
- Disconnect: Driver Door IA Antenna C543.
- Measure the resistance between the driver door IA antenna C543 pin 3, component side and the driver door IA antenna C543 pin 4, component side.
- Is the resistance between 1 and 10 ohms?
Yes
GO to H6.
No
INSTALL a new exterior driver door handle. REFER to Exterior Door Handle Exterior Door Handle. TEST the system for normal operation.
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H6 CHECK THE DRIVER DOOR IA ANTENNA CIRCUITS FOR A SHORT TO VOLTAGE
- Disconnect: RFA Module C2153a.
- Ignition ON.
- Measure the voltage between the driver door IA antenna C543-3, circuit VPK01 (BN/YE), harness side and ground; and between the driver door IA antenna C543-4, circuit RPK01 (WH/GN), harness side and ground.
- Is any voltage present?
Yes
REPAIR the circuit in question for a short to voltage. TEST the system for normal operation.
No
GO to H7.
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H7 CHECK THE DRIVER DOOR IA ANTENNA CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure the resistance between the driver door IA antenna C543-3, circuit VPK01 (BN/YE), harness side and ground; and between the driver door IA antenna C543-4, circuit RPK01 (WH/GN), harness side and ground.
- Is the resistance greater than 10,000 ohms?
Yes
GO to H8.
No
REPAIR the circuit in question for a short to ground. TEST the system for normal operation.
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H8 CHECK THE DRIVER DOOR IA ANTENNA POWER CIRCUIT FOR AN OPEN
- Measure the resistance between the driver door IA antenna C543-3, circuit VPK01 (BN/YE), harness side and the RFA module C2153a-17, circuit VPK01 (BN/YE), harness side.
- Is the resistance less than 5 ohms?
Yes
GO to H9.
No
REPAIR the circuit. TEST the system for normal operation.
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H9 CHECK THE DRIVER DOOR IA ANTENNA RETURN CIRCUIT FOR AN OPEN
- Measure the resistance between the driver door IA antenna C543-4, circuit RPK01 (WH/GN), harness side and the RFA module C2153a-18, circuit RPK01 (WH/GN), harness side.
- Is the resistance less than 5 ohms?
Yes
GO to H10.
No
REPAIR the circuit. TEST the system for normal operation.
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H10 CHECK FOR CORRECT RFA MODULE OPERATION
- Disconnect all the RFA module connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the RFA module connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes
INSTALL a new RFA module. REFER to Multifunction Electronic Modules Remote Function Actuator (RFA) Module. TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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