DTC U0127-00: Communication Error With Keyless Receiver: Notes

DTC U0127:00 DETECTION CONDITION AND POSSIBLE CAUSE

DESCRIPTION	Communication error with keyless receiver
DETECTION CONDITION	Communication error between instrument cluster and keyless receiver.
FAIL-SAFE FUNCTION	-
POSSIBLE CAUSE	Keyless receiver connector or terminals malfunction BCM connector or terminals malfunction Instrument cluster connector or terminals malfunction Short to ground in wiring harness between the following terminals: Keyless receiver terminal D-BCM terminal 4K-Instrument cluster terminal G Short to power supply in wiring harness between the following terminals: Keyless receiver terminal D-BCM terminal 4K-Instrument cluster terminal G Open circuit in wiring harness between the following terminals: Keyless receiver terminal D-BCM terminal 4K-Instrument cluster terminal G Keyless receiver malfunction BCM malfunction Instrument cluster malfunction
Courtesy of MAZDA MOTORS CORP.