No.24 No Engine Braking In 1GR Position Of M Range: Notes

WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

NO ENGINE BRAKING IN 1GR POSITION OF M RANGE DESCRIPTION AND POSSIBLE CAUSE

24	No engine braking in 1GR position of M range
DESCRIPTION	Engine speed drops to idle but vehicle coasts when accelerator pedal is released when in 1GR of M range at low vehicle speed.
POSSIBLE CAUSE	Clutch slippage (low and reverse brake) In the event of clutch slippage, a DTC (incorrect gear ratio) is output. Input/output signal malfunction M range switch (short or open circuit, poor connection) Shift solenoid F Control valve body malfunction (improper operation, stuck) Hydraulic circuit clogging (Shift solenoid F) NOTE: Before following the troubleshooting steps, make sure that the Automatic Transmission On-Board Diagnostic and Automatic Transmission Basic Inspection are conducted. (See BASIC INSPECTION .)

No engine braking in 1GR position of M range

DESCRIPTION

Engine speed drops to idle but vehicle coasts when accelerator pedal is released when in 1GR of M range at low vehicle speed.

POSSIBLE CAUSE

Clutch slippage (low and reverse brake)
- In the event of clutch slippage, a DTC (incorrect gear ratio) is output.
Input/output signal malfunction
- M range switch (short or open circuit, poor connection)
- Shift solenoid F
Control valve body malfunction (improper operation, stuck)
- Hydraulic circuit clogging (Shift solenoid F)
NOTE:
- Before following the troubleshooting steps, make sure that the Automatic Transmission On-Board Diagnostic and Automatic Transmission Basic Inspection are conducted. (See BASIC INSPECTION .)