So I've been having a parking brake issues for a while and I took it to local shop which replaced the shoes but couldn't clear the Parking Brake light on the dash. Went home and was able to actuate the parking brake without issues a couple times. And then of course I get a Parking Brake Fault on the dash with the following error

C1A55-64 (FB) Ignition switch input circuit - Algorithm based failure - signal plausibility failure

This one is a new one Im not sure where to begin. Any help or suggestions would be appreciated. I tried clearing the faults but it returns

 

What else does it do besides the fault? Noises? Vibrations? Does the EPB actuate and release correctly?

 

I get the following

Start the vehicle - Parking Brake Fault message and amber light

Vehicle in Park (Engine Running), try to apply parking brake - No noise only Parking Brake Fault message

Vehicle in Park (Engine Running), foot on brake and apply parking brake - I can hear the parking brake actuate, red parking brake light on dash and will hold vehicle if put into drive/reverse

Vehicle in Park (Engine Running), foot on brake and remove parking brake - I can hear the parking brake actuate, parking brake light goes out and parking brake is released

Turn off vehicle - Parking Brake Fault message

 

In case anything is related, here are the other faults Im gettingL319 - LR3 2005
Vehicle scanned on 13-04-2023 08:33
Using IIDTool BT V3.0 B2481

Parking Brake

• C1A55-64 (FB) Ignition switch input circuit - Algorithm based failure - signal plausibility failure
  ( on 13-04-2023 08:33:08 at 260602 km )

Transfer Case

• P173E-00 (2F) Ignition key lock solenoid - circuit low
  ( on 13-04-2023 08:33:11 at 260602 km )

Ventilation

• B1B70-15 (2F) Local interconnection network bus circuit 2 - General electrical failure - circuit short to battery or open
  ( on 13-04-2023 08:33:09 at 260602 km )
• B1B70-88 (2F) Local interconnection network bus circuit 2 - Bus signal/message failure - bus is off
  ( on 13-04-2023 08:33:09 at 260602 km )
• B1B82-00 (2F) Rear air distribution stepper actuator
  ( on 13-04-2023 08:33:09 at 260602 km )
• B1B83-00 (2F) Rear air blend stepper actuator
  ( on 13-04-2023 08:33:09 at 260602 km )

The rear blower/hvac hasnt worked in ages and Im not overly concerned right now

 

Hmmm....not sure, doesn't sound like an actuator though.

 

Big ask, can some one pretty please with a GAP IID tool capture the following line values while applying the parking brake and then releasing it and log this data to a csv file.

Main engine control module voltage supply (V)

Motor current (A)

Electric parking brake - switch input status (-)

Longitudinal accelerometer sensor input (ms2)


All of these IO values would be found under the Parking Brake section. I would love to compare anyone with an LR3 and LR4 to what I captured