No. 10 Frequent Shifting

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

FREQUENT SHIFTING - DESCRIPTION & POSSIBLE CAUSE

10	Frequent shifting
DESCRIPTION	Downshifting occurs immediately even when accelerator pedal is depressed slightly in D, 2, 1 ranges. (O/D OFF switch is off. )
POSSIBLE CAUSE	The circuit is the cause and possible cause is basically the same as for No. 9 "ABNORMAL SHIFT". However, a malfunction of the input signal to the throttle position sensor, input/turbine speed sensor, output speed sensor (including the sensor ground, sensor harness and connector), or clutch slippage (clutch stuck, low pressure in line) may also be the cause. NOTE: Before following the troubleshooting steps, make sure that the on-board diagnosis and basic inspection have been conducted.

Frequent shifting

DESCRIPTION

Downshifting occurs immediately even when accelerator pedal is depressed slightly in D, 2, 1 ranges. (O/D OFF switch is off. )

POSSIBLE CAUSE

The circuit is the cause and possible cause is basically the same as for No. 9 "ABNORMAL SHIFT". However, a malfunction of the input signal to the throttle position sensor, input/turbine speed sensor, output speed sensor (including the sensor ground, sensor harness and connector), or clutch slippage (clutch stuck, low pressure in line) may also be the cause.

NOTE:

Before following the troubleshooting steps, make sure that the on-board diagnosis and basic inspection have been conducted.

NOTE:

If the malfunction remains, inspect related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.
- If vehicle is repaired, troubleshooting completed.
- If vehicle is not repaired or additional diagnostic information is not available, replace TCM.