2009 H2 SUT
Remotes started to only work if held inches from vehicle. Previously they worked great. Changed batteries in remotes. No joy. Checked battery voltage, All good.

Chasing the RCDLR as culprit. No clue where it is located. I see some reference the BCM, but found a separate part number for the RCDLR.
Any suggestions appreciated.

Thanks

 

right above the IPC in the dash,
the dash cover has to be removed along with the defrost nozzle on the driver side
this is for the 08 so I'm guessing its the same for the 09

Neal

 

It has an antenna that is attached to the A-pillar to the left of the steering wheel

Neal

 

also the Tire pressure system uses the same FM receiver and antenna (located in the RCDLR), are you having issues with the TPM system?

The RCDLR receives a signal form the remote transmitter to start it sends a signal to the BCM and then the signal is sent to the ECM, both check for a list of conditions to be met then the start command is allowed.

Neal

 

Check remote. Open up and clean button contacts.

 

Thanks for responses. Remotes all good, cleaned up w/ new batteries-still have issue. TPM has a occasional issue with signal (1 day out of month), then it's fine. With lock/unlock, remote start, and TPM issues, kinda looking like something with the RCDLR. Thanks for the input, I'll go to digging.