TheCat78
Member
- Joined
- Jun 14, 2025
- Threads
- 2
- Messages
- 13
- Reaction score
- 6
- Location
- Bay Area, California
- Car(s)
- 2026 GR Supra
- Thread starter
- #1
Hi all, posting here because I've exhausted most of my options and will be taking it to another shop to check my wires and battery.
To sum it all up: I recently installed some JRZ rs pros with rsr edc cancelers (both used) and went back on the track. During the last 2 sessions, I ended up getting the rear axle diff lock reduced message, and eventually got the rear axle diff lock restricted message and went into limp mode mid track.
Since then I've been having the rear axle diff lock reduced message pop up when driving on the freeway. I've noticed that when that message pops up, my radio/sound system starts cutting off and getting really choppy (like every 2 seconds sound cuts out for a few seconds over and over until the message disappears).
Things I've tried since then: I changed my diff fluid since at first i thought i overheated the diff and fluid change was due anyways(swapped to 75w85 redline). I took my car back to the shop for them to check for loose connections/wires, and I've unplugged and replugged the edc cancelers. The shop recommended I try getting new edc cancelers since mine are used. I have those ordered and will also get my car checked out at another shop as I've been getting these error codes on protools:
BDC Module:
8041A5 No DESC
804863 output middle brake light short circuit
Integrated Braking: D7545D Signal [actual QMVH, 73.0.2] invalid, transmitter GHAS
Amplifier:
B7F4E2 Overvoltage
B7F4E3 Overvoltage
Radio system:
B7F8F6 HDCP: Authentication failed
Cluster:B7F6EC Defective image data received from instrument cluster
The diff lock message appears often when i drive on the freeway then disappears after 10-15minutes while driving. Also whenever I do any hard acceleration, the sound from my radio gets choppy/cuts out.
Has anyone had these issues/found solutions for them?m
Also car is 2026 MT
To sum it all up: I recently installed some JRZ rs pros with rsr edc cancelers (both used) and went back on the track. During the last 2 sessions, I ended up getting the rear axle diff lock reduced message, and eventually got the rear axle diff lock restricted message and went into limp mode mid track.
Since then I've been having the rear axle diff lock reduced message pop up when driving on the freeway. I've noticed that when that message pops up, my radio/sound system starts cutting off and getting really choppy (like every 2 seconds sound cuts out for a few seconds over and over until the message disappears).
Things I've tried since then: I changed my diff fluid since at first i thought i overheated the diff and fluid change was due anyways(swapped to 75w85 redline). I took my car back to the shop for them to check for loose connections/wires, and I've unplugged and replugged the edc cancelers. The shop recommended I try getting new edc cancelers since mine are used. I have those ordered and will also get my car checked out at another shop as I've been getting these error codes on protools:
BDC Module:
8041A5 No DESC
804863 output middle brake light short circuit
Integrated Braking: D7545D Signal [actual QMVH, 73.0.2] invalid, transmitter GHAS
Amplifier:
B7F4E2 Overvoltage
B7F4E3 Overvoltage
Radio system:
B7F8F6 HDCP: Authentication failed
Cluster:B7F6EC Defective image data received from instrument cluster
The diff lock message appears often when i drive on the freeway then disappears after 10-15minutes while driving. Also whenever I do any hard acceleration, the sound from my radio gets choppy/cuts out.
Has anyone had these issues/found solutions for them?m
Also car is 2026 MT
Sponsored
Last edited:
