Mazda RX-8 Workshop Manual page 1668

FAIL-SAFE
POSSIBLE
CAUSE
Diagnostic procedure
Inspect according to diagnostic procedure in BODY & ACCESSORIES. (See
[MULTIPLEX COMMUNICATION
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Invalid engine speed signal is continuously received for 0.5
s in CAN communication.
Invalid reference engine torque signal is continuously
received for 0.5 s in CAN communication.
Invalid engine torque signal is continuously received for
0.5 s in CAN communication.
Inhibits TCS control and DSC control, and illuminates DSC indicator light.
Malfunction in communication line between PCM, TCM, instrument cluster,
and steering angle sensor
Malfunction in PCM, TCM, instrument cluster, or steering angle sensor
Poor connection at connectors (female terminal)
SYSTEM].)
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