NO.22 NO ENGINE BRAKING IN HOLD MODE [FN4A-EL]

BME050301030226

22

No engine braking in HOLD mode

DESCRIPTION

• Engine speed drops to idle but the vehicle coasts when the accelerator pedal is released during cruising at medium to high speeds.
• Engine speed drops to idle but the vehicle coasts when the accelerator pedal is released when in L range at low vehicle speed.

POSSIBLE CAUSE

1. Clutch slippage, burnt (low and reverse brake)
• Line pressure low
• Shift solenoid D malfunction
• Shift solenoid E malfunction
• Shift solenoid C malfunction
• Control valve body malfunction
• Body GND malfunction
2. Signal malfunction
• TP sensor malfunction
• Vehicle speed sensor malfunction
• Sensor GND malfunction
• Input/turbine speed sensor malfunction
3. PCM does not determine that the HOLD switch is ON (short, or open circuit, poor operation)
• HOLD switch signal malfunction
Note
• Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.

Diagnostic procedure

STEP

INSPECTION

ACTION

1
Do the following symptoms occur concurrently?
• Engine flares up or slips during acceleration.
• Engine flares up or slips when shifting.
Yes
Go to NO.14 "ENGINE FLARES UP OR SLIPS WHEN UPSHIFTING OR DOWNSHIFTING" or No.15 "ENGINE FLARES UP OR SLIPS WHEN ACCELERATING VEHICLE".
No
Repeat basic inspection and repair or replace any malfunctioning parts according to the inspection result.