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

id0503a1815200

22 | No engine braking in hold mode
DESCRIPTION | • Engine speed drops to idle but vehicle coasts when accelerator pedal is released during cruising at medium to high speeds. • Engine speed drops to idle but vehicle coasts when accelerator pedal is released when in L range at low vehicle speed.
POSSIBLE CAUSE | 1. Clutch slippage, burned (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. HOLD switch ON not judged by PCM (short, or open circuit, poor operation) • HOLD switch signal malfunction Note • Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | • Do following symptoms concurrently occur? - Engine flares up or slips during acceleration. - Engine flares up or slips when shifting. | Yes | Go to symptom troubleshooting 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 defective parts according to inspection result. (See BASIC INSPECTION [FN4A-EL].)
2 | • Verify test results. - If normal, return to diagnostic index to service any additional symptoms. - If malfunction remains, inspect related Service Information and perform repair or diagnosis. • If vehicle repaired, troubleshooting completed. • If vehicle not repaired or additional diagnostic information not available, replace PCM.