Mazda RX-8 Manual page 1158

DTC P0706
DTC P0706
DETECTION
CONDITION
POSSIBLE CAUSE
Transmission range (TR) switch circuit malfunction (open circuit/short to ground)
No range signal is input from the TR switch for 100 s or more .
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Diagnostic support note:
This is a continuous monitor (CCM).
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MIL illuminates if TCM detects the above malfunction condition in two
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consecutive drive cycles.
PENDING CODE is available.
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FREEZE FRAME DATA is available.
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AT warning light illuminates.
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DTC is stored in TCM memory.
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TR switch malfunction
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TR switch misadjustment
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Short to ground in wiring harness between TR switch terminal A and TCM
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terminal 1D
Short to ground in wiring harness between TR switch terminal E and TCM
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terminal 2C
Short to ground in wiring harness between TR switch terminal D and TCM
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terminal 2B
Short to ground in wiring harness between TR switch terminal G and TCM
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terminal 2E
Open circuit in wiring harness between TR switch terminal A and TCM
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terminal 1D
Open circuit in wiring harness between TR switch terminal E and TCM
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terminal 2C
Open circuit in wiring harness between TR switch terminal D and TCM
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terminal 2B
Open circuit in wiring harness between TR switch terminal G and TCM
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terminal 2E
Open circuit in wiring harness between TR switch terminal C and ignition
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switch (IG1)
Short to ground between TR switch terminal C and ignition switch (IG1)
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Damaged connector between TR switch and TCM
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TCM malfunction
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(w) RX-8 Transmission (Manual & Auto)
Page 133