NO.25 ENGINE STALLS WHEN DRIVING AT SLOW SPEEDS OR STOPPING [FN4A-EL]

id050301805800

25
Engine stalls when driving at slow speeds or stopping
DESCRIPTION
•  Engine stalls when the brake pedal is depressed while driving at low speed or stopping.
POSSIBLE CAUSE
•  The malfunction on engine control side (e.g. Fuel injection control, electronic throttle control system). Otherwise, the malfunction is in the control valve body, shift solenoid E or TCC.

Diagnostic procedure

STEP

INSPECTION

ACTION
1
Go to the symptom troubleshooting “NO.10 LOW IDLE/STALLS DURING DECELERATION”.
(See NO.10 LOW IDLE/STALLS DURING DECELERATION [MZR 1.5, MZR 1.6].)
Is the engine control system normal?
Yes
Go to the next step.
No
Repair or replace any malfunctioning parts according to the inspection results.
2
Go to the symptom troubleshooting “NO.5 ENGINE STALLS-AFTER START/AT IDLE”.
(See NO.5 ENGINE STALLS-AFTER START/AT IDLE [MZR 1.5, MZR 1.6].)
Is the engine control system normal?
Yes
Repeat the “BASIC INSPECTION” and repair or replace any malfunctioning parts according to the inspection results.
(See BASIC INSPECTION [FN4A-EL].)
No
Repair or replace any malfunctioning parts according to the inspection results.
3
•  Verify the test results.
―  If normal, return to the diagnostic index to service any additional symptoms.
―  If the malfunction remains, inspect the related Service Information and perform repair or diagnosis.
•  If the vehicle is repaired, troubleshooting is completed.
•  If the vehicle is not repaired or additional diagnostic information is not available, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZR 1.5, MZR 1.6].)