Mazda RX-8 2004 Service Highlights page 328

AT WARNING LIGHT FUNCTION
• The AT warning light illuminates to alert the driver of a malfunction in the automatic transmission.
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AT WARNING LIGHT CONSTRUCTION/OPERATION
• The AT warning light is built into the instrument cluster.
• The AT warning light illuminates when the instrument cluster receives a warning signal from the TCM via CAN
communication.
• The TCM sends a warning signal to the instrument cluster via CAN communication when it detects a
malfunction.
INSTRUMENT CLUSTER
AT WARNING
LIGHT
AT
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SELECTOR INDICATOR LIGHT FUNCTION
• The selector indicator light has a selector lever position light, and a gear position indicator light that indicates
gear position.
• When downshifting is cancelled in the M range, the gear position indicator light flashes two times to alert the
driver that downshifting is cancelled.
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SELECTOR INDICATOR LIGHT CONSTRUCTION/OPERATION
Construction
• The selector indicator light is built into the instrument cluster.
• When in the P, R, N or D range, the TCM detects the selector lever position based on an analog signal from the
TR switch. When in the M range, the TCM detects the selector lever position based on a signal from the M
range switch inside the selector lever component.
• When the instrument cluster receives a range signal or a gear position signal from the TCM via CAN
communication, the selector lever position and the gear position indicator lights illuminate or flash accordingly.
Revised 6/2004 (Ref. No. R034/04)
2004 Mazda RX-8 Service Highlights (3378–1U–03C)
AUTOMATIC TRANSMISSION
1GR
1L
2GR
1J
3GR
4GR
1GR
CAN
1Y
2GR
1V
3GR
4GR
CHU051319010S07
CHU051319010S08
TCM
CHU0513S070
CHU051319010S09
CHU051319010S10
05–13–37
05–13