[DTC error code] B3122:05 Keyless Entry Antenna 4 fail
Thread Starter
5th Gear
Joined: Apr 2016
Posts: 5
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[DTC error code] B3122:05 Keyless Entry Antenna 4 fail
Hi, yall, I found C7's passive unclock was not working, so I ran the DTC diagnostics. It shows
Keyless entry control module - "B3122:05" - "Keyless entry antenna 4 high voltage/open"
Does anyone know to fix it? or know the "Keyless Entry Antenna 4" location?
Greatly appreciated,
Max
Keyless entry control module - "B3122:05" - "Keyless entry antenna 4 high voltage/open"
Does anyone know to fix it? or know the "Keyless Entry Antenna 4" location?
Greatly appreciated,
Max
Le Mans Master
Joined: Feb 2006
Posts: 5,979
Likes: 4,141
From: Kansas City, MO
Antenna 4 is in the center console. Dunno why that would cause your passive unlock to act up, but maybe it's causing the rest of the system to go into some kind of fault condition. Here's what the service manual says about that code.
B3122 05
The keyless entry control module detects a short to B+ or an open on the front center console keyless entry antenna signal circuit.
Action Taken When the DTC Sets
Vehicle will not detect the transmitter in some locations inside the vehicle. If the transmitter is not detected then vehicle will not change ignition modes when ignition mode switch is pressed.
Conditions for Clearing the DTC
A current DTC will clear when the conditions for setting the DTC are no longer present.
A history DTC will clear after 40 malfunction-free ignition cycles.
B3122 05
The keyless entry control module detects a short to B+ or an open on the front center console keyless entry antenna signal circuit.
Action Taken When the DTC Sets
Vehicle will not detect the transmitter in some locations inside the vehicle. If the transmitter is not detected then vehicle will not change ignition modes when ignition mode switch is pressed.
Conditions for Clearing the DTC
A current DTC will clear when the conditions for setting the DTC are no longer present.
A history DTC will clear after 40 malfunction-free ignition cycles.
