DTC U063F-00: Communication Error Between Coolant Control Valve Position Sensor And Pcm: Notes

DTC U063F:00 DETECTION CONDITION AND POSSIBLE CAUSE

DTC U63F:00	SENT communication: Communication error between coolant control valve position sensor and PCM
DETECTION CONDITION	When any of the following conditions is met: SENT communication line malfunction between coolant control valve position sensor and PCM The PCM detected a SENT communication type communication error from the coolant control valve position sensor. Diagnostic support note This is a continuous monitor (CCM). The check engine light does illuminate. FREEZE FRAME DATA/Snapshot data is available. DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	Not applicable
POSSIBLE CAUSE	SENT communication line error between coolant control valve position sensor and PCM Coolant control valve/coolant control valve position sensor connector or terminals malfunction PCM connector or terminals malfunction Open circuit in wiring harness between the following terminals: Coolant control valve/coolant control valve position sensor terminal C-PCM terminal 1D Coolant control valve/coolant control valve position sensor terminal D-PCM terminal 1I Coolant control valve/coolant control valve position sensor terminal E-PCM terminal 1BG Short to ground in wiring harness between the following terminals: Coolant control valve/coolant control valve position sensor terminal C-PCM terminal 1D Coolant control valve/coolant control valve position sensor terminal D-PCM terminal 1I Coolant control valve/coolant control valve position sensor terminal E-PCM terminal 1BG Short to power supply in wiring harness between the following terminals: Coolant control valve/coolant control valve position sensor terminal C-PCM terminal 1D Coolant control valve/coolant control valve position sensor terminal D-PCM terminal 1I Coolant control valve/coolant control valve position sensor terminal E-PCM terminal 1BG Coolant control valve/coolant control valve position sensor circuits are shorted to each other Coolant control valve position sensor malfunction PCM malfunction
Courtesy of MAZDA MOTORS CORP.