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Home >> Mazda >> 2017 >> MX-5 Miata Club, Automatic Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> On-Board Diagnostic - Automatic Transmission >> DTC P0963-00; Line Pressure Control Solenoid Signal: Short Circuit >> Notes

DTC P0963-00; Line Pressure Control Solenoid Signal: Short Circuit: Notes

DTC P0963:00 Line pressure control solenoid signal: Short circuit
DETECTION CONDITION
  • Vehicle condition: TCM normal during engine rotation
  • Status: Detects open circuit or short to ground in line pressure control solenoid signal system
  • Period: Confirmed 5 times in 0.1 s or more
FAIL-SAFE FUNCTION
  • Inhibits learning control.
  • Inhibits the manual shift control.
  • Inhibits direct mode.
  • Inhibits AAS mode.
  • Inhibits the TCC control and slip control.
  • Inhibits 5GR and 6GR.
  • Inhibits the neutral control.
  • Inhibits the slope control.
  • Sets to emergency mode.
POSSIBLE CAUSE
  • TCM connector or terminal malfunction
  • Short to power supply in wiring harness between line pressure control solenoid terminal B and TCM terminal 2R
  • Short to power supply in wiring harness between line pressure control solenoid terminal A and TCM terminal 2E
  • Line pressure control solenoid malfunction
  • TCM malfunction
Fig 1: TCM Circuit Diagram
G11279560Courtesy of MAZDA MOTORS CORP.