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Symptom Troubleshooting - Automatic Transaxle [FN4A-EL]: Other Mazda 2 II рестайлинг

Automatic Trans 1 illustration ~306 words

FOREWORD [FN4A-EL]

  1. When the customer reports a vehicle malfunction, check the malfunction indicator lamp (MIL) illuminating, O/D OFF indicator light flashing, and diagnostic trouble code (DTC), then diagnose the malfunction according to following flowchart. If a DTC exists, diagnose the applicable DTC inspection. (See «ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [FN4A-EL]»(ref-517461-S35783790972012121200000) .) If a DTC does not exist, the MIL does not illuminate, and O/D OFF indicator light flashes, diagnose the applicable symptom troubleshooting. (See «SYMPTOM TROUBLESHOOTING ITEM TABLE [FN4A-EL]»(ref-517500-S38734428782012121200000) .)

Malfunction Indicator Lamp Flowchart (O/D OFF Indicator Light Flashing). Scheme 466

Scheme 466: Malfunction Indicator Lamp Flowchart (O/D OFF Indicator Light Flashing)

NO.1 VEHICLE DOES NOT MOVE IN D, 2, 1 OR R POSITION [FN4A-EL]

1Vehicle does not move in D, 2, 1 or R position
DESCRIPTIONVehicle does not move when accelerator pedal depressed.
POSSIBLE CAUSEIf vehicle does not move in the D, 2, 1 or R position, basically, malfunction is in ATX. (Vehicle will move even with a malfunction in PCM.) Since a malfunction is in sensor circuit or output circuit is cause of malfunction in ATX, inspect sensors, output circuit, and related harnesses. Clutch slipped, worn (D, 2 and 1 positions-Forward clutch, R position-Reverse clutch, Low and reverse brake) Line pressure low Shift solenoid D malfunction Shift solenoid E malfunction Shift solenoid A malfunction Shift solenoid B malfunction Pressure control solenoid malfunction Body GND malfunction Control valve body malfunction Selector lever malfunction Parking mechanism not properly operation Torque converter malfunction NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)
NOTE
Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)

NO.2 VEHICLE MOVES IN N POSITION [FN4A-EL]

2Vehicle moves in N position
DESCRIPTIONVehicle creeps in the N position. Vehicle creeps if brake pedal is not depressed in N position.
POSSIBLE CAUSEIf vehicle moves in the N position, basically, malfunction is in ATX. Since a malfunction in sensor circuit or output circuit is cause of malfunction in ATX, inspect sensors, output circuit, and related harnesses. Clutch burned (Forward clutch) Control valve body malfunction Selector lever position disparity (Although the selector indicator shows the N position, hydraulic circuit shows the D or R position) NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)
NOTE
Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)

NO.3 VEHICLE MOVES IN P POSITION, OR PARKING GEAR DOES NOT DISENGAGE WHEN P IS DISENGAGED [FN4A-EL]

3Vehicle moves in P position, or parking gear does not disengage when P is disengaged
DESCRIPTIONVehicle rolls when on a downward slope and tires do not lock in the P position. Tires locked when the P position is disengaged, vehicle does not move in the D, 2, 1 and R positions when accelerator pedal depressed, and engine remains in stall condition.
POSSIBLE CAUSEParking mechanism malfunction (May have effect on noise or shock from transaxle.) Improper adjustment of selector cable If vehicle moves in the N position, perform symptom troubleshooting "NO.2 VEHICLE MOVES IN N POSITION". (See NO.2 VEHICLE MOVES IN N POSITION [FN4A-EL] .)

NO.4 EXCESSIVE CREEP [FN4A-EL]

4Excessive creep
DESCRIPTIONVehicle accelerates in the D, 2, 1 and R positions without depressing accelerator pedal.
POSSIBLE CAUSEEngine idle speed high (Transaxle system is not cause of problem.) Perform engine control system troubleshooting "NO.9 FAST IDLE/RUNS ON". (See NO.9 FAST IDLE/RUNS ON [MZR 1.5] .)

NO.5 NO CREEP AT ALL [FN4A-EL]

5No creep at all
DESCRIPTIONVehicle does not move in the D, 2, 1 or R position when idling on flat paved road.
POSSIBLE CAUSEEither transaxle is stuck in 3GR or O/D position, or clutch circuit slippage due to a stuck 3-4 clutch is stuck. Clutch slippage, burned Line pressure low Shift solenoid D malfunction Shift solenoid A malfunction Shift solenoid B malfunction Shift solenoid C malfunction Pressure control solenoid malfunction Body GND malfunction Control valve body malfunction Transaxle fixed in 3GR (Operation of fail-safe function) Short or open circuit in wiring harness Poor connection of connector Electronic parts of output and input system is malfunction. Engine torque is not start. Torque converter malfunction NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)
NOTE
Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)

NO.6 LOW MAXIMUM SPEED AND POOR ACCELERATION [FN4A-EL]

6Low maximum speed and poor acceleration
DESCRIPTIONVehicle acceleration poor at start. Delayed acceleration when accelerator pedal depressed while driving.
POSSIBLE CAUSEIf clutch is stuck or does not stay in 3GR, malfunction is in engine circuit. Clutch slipped, burned Line pressure low Shift solenoid D malfunction Shift solenoid E malfunction Shift solenoid A malfunction Shift solenoid B malfunction Shift solenoid C malfunction Pressure control solenoid malfunction Body GND malfunction Control valve body malfunction Signal malfunction VSS malfunction Sensor GND malfunction APP sensor malfunction Input/turbine speed sensor malfunction Transaxle fixed in 3GR (Operation of fail-safe function) Short or open circuit in wiring harness Poor connection of connector Electronic parts of output and input system is malfunction. Insufficient starting torque (Suspected when in-gear condition, shift control and engine circuit are normal.) Torque converter malfunction (Poor operation, stuck) Engagement of TCC operation range (Operation of fail-safe function) TFT sensor malfunction (Short or open circuit) TR switch adjustment incorrect NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)
NOTE
Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)

NO.7 NO SHIFTING [FN4A-EL]

7No shifting
DESCRIPTIONSingle shift range only. Sometimes shifts correctly.
POSSIBLE CAUSEWhen gear position is fixed in 3GR due to fail-safe operation, malfunction is in ATX. Perform symptom troubleshooting "NO.6 LOW MAXIMUM SPEED AND POOR ACCELERATION". (See NO.6 LOW MAXIMUM SPEED AND POOR ACCELERATION [FN4A-EL] .) Clutch slippage, burned Line pressure low Shift solenoid D malfunction Shift solenoid A malfunction Shift solenoid B malfunction Shift solenoid C malfunction Pressure control solenoid malfunction Body GND malfunction Control valve body malfunction Signal malfunction VSS malfunction Sensor GND malfunction APP sensor malfunction Input/turbine speed sensor malfunction Transaxle fixed in 3GR (Operation in fail-safe function) Short or open circuit in wiring harness Poor connection of connector Disconnected shift solenoid connector Poor GND of shift solenoid

NO.8 DOES NOT SHIFT TO O/D [FN4A-EL]

8Does not shift to O/D
DESCRIPTIONVehicle does not upshift from 3GR to O/D even though vehicle speed is increased. Vehicle does not shift to O/D even though accelerator pedal is released in the D position at 60 km/h {37 mph} .
POSSIBLE CAUSEBasically, TCC does not operate when fail-safe is operating. Verify DTCs first. If TCC operates when driving at high speeds only, malfunction (improper adjustment) is in O/D OFF switch circuit or TR switch circuit. CAUTION: If TCC is stuck, inspect it. In addition, inspect oil cooler for foreign particles which may have mixed in with ATF. Clutch or brake slipped, burned Line pressure low APP sensor malfunction ECT sensor malfunction VSS malfunction Input/turbine speed sensor malfunction Sensor GND malfunction TFT sensor malfunction Short or open circuit in wiring harness Poor connection of connector Sensor malfunction TR switch malfunction Short or open circuit in wiring harness Poor connection of connector Sensor malfunction Selector cable adjustment incorrect TR switch adjustment incorrect Shift solenoid A, shift solenoid B, shift solenoid D valve malfunction Short or open circuit in wiring harness Poor connection of connector Solenoid valve stuck O/D OFF switch (built-in selector lever component) malfunction Control valve body malfunction NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)
CAUTION
If TCC is stuck, inspect it. In addition, inspect oil cooler for foreign particles which may have mixed in with ATF.
NOTE
Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)

NO.9 ABNORMAL SHIFTING [FN4A-EL]

9Abnormal shifting
DESCRIPTIONShifts incorrectly (incorrect shift pattern).
POSSIBLE CAUSEThere is a malfunction in signal circuit which controls shifting (APP sensor, input/turbine speed sensor, VSS), control valve is stuck, accumulator (forward or servo apply) is stuck, or clutch circuit is stuck. Clutch slipped, burned Line pressure low Control valve body malfunction Shift solenoid D malfunction Shift solenoid E malfunction Shift solenoid A malfunction Shift solenoid B malfunction Shift solenoid C malfunction Body GND malfunction APP sensor malfunction Signal malfunction VSS malfunction Sensor GND malfunction APP sensor malfunction Input/turbine speed sensor malfunction TR switch malfunction Selector cable adjustment incorrect TR switch adjustment incorrect NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)
NOTE
Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)

NO.10 FREQUENT SHIFTING [FN4A-EL]

10Frequent shifting
DESCRIPTIONDownshifting occurs immediately even when accelerator pedal depressed slightly in the D, 2, 1 positions.
POSSIBLE CAUSECircuit which is cause is basically same as symptom troubleshooting "NO.9 ABNORMAL SHIFTING". (See Schedule 1: (Normal Driving Conditions) for U.S.A..

NO.11 SHIFT POINT IS HIGH OR LOW [FN4A-EL]

11Shift point is high or low
DESCRIPTIONShift point considerably different from automatic shift diagram. Shift delays when accelerating. Shift occurs quickly when accelerating and engine speed does not increase.
POSSIBLE CAUSEIf transaxle does not shift abnormally, there is a malfunction of input signal to APP sensor, input/turbine speed sensor, or VSS (including sensor GND). If engine speed is high or low, regardless normal shifting, inspect tachometer. Verify that output signal of APP sensor changes linearly. Clutch slippage

NO.13 NO KICKDOWN [FN4A-EL]

13No kickdown
DESCRIPTIONDoes not downshift when accelerator pedal fully depressed within kickdown range.
POSSIBLE CAUSEIf transaxle does not downshift though shifting is normal, malfunction is in APP sensor circuit (including sensor GND, sensor harness and connector).

NO.14 ENGINE FLARES UP OR SLIPS WHEN UPSHIFTING OR DOWNSHIFTING [FN4A-EL]

14Engine flares up or slips when upshifting or downshifting
DESCRIPTIONWhen accelerator pedal is depressed for driveway, engine speed increases but vehicle speed increase slowly. When accelerator pedal is depressed while driving, engine speed increases but vehicle speed does not.
POSSIBLE CAUSEThere is clutch slip because clutch is stuck or line pressure is low. Clutch stuck, slippage, burnt (forward clutch, 3-4 clutch, 2-4 brake band, one-way clutch) Line pressure low Shift solenoid D malfunction Shift solenoid E malfunction Shift solenoid A malfunction Shift solenoid B malfunction Shift solenoid C malfunction Pressure control solenoid malfunction Body GND malfunction APP sensor malfunction Control valve body malfunction Signal malfunction VSS malfunction Sensor GND malfunction APP sensor malfunction Input/turbine speed sensor malfunction Poor operation of mechanical pressure Selector lever position disparity TR switch position disparity NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)
NOTE
Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)

NO.15 ENGINE FLARES UP OR SLIPS WHEN ACCELERATING VEHICLE [FN4A-EL]

15Engine flares up or slips when accelerating vehicle
DESCRIPTIONEngine flares up when accelerator pedal is depressed for upshifting. Engine flares up suddenly when accelerator pedal is depressed for downshifting.
POSSIBLE CAUSEMalfunction is basically same as for symptom troubleshooting NO.14 ENGINE FLARES UP OR SLIPS WHEN UPSHIFTING OR DOWNSHIFTING [FN4A-EL] . (See NO.14 ENGINE FLARES UP OR SLIPS WHEN UPSHIFTING OR DOWNSHIFTING [FN4A-EL].) If conditions for No.14 worsen, malfunction will develop to No.15.

NO.17 EXCESSIVE SHIFT SHOCK FROM N TO D OR N TO R POSITION [FN4A-EL]

17Excessive shift shock from N to D or N to R position
DESCRIPTIONStrong shock is felt when shifting from the N to D or N to R position at idle.
POSSIBLE CAUSEShift shock may worsen when fail-safe is operating. If no DTC is output, shift shock may worsen due to poor operation of control valve body or sticking of clutch. Clutch burned (N--> D position: Forward clutch, N--> R position: Reverse clutch or low and reverse brake) Line pressure low, high APP sensor malfunction VSS malfunction Input/turbine speed sensor malfunction Shift solenoid B malfunction Shift solenoid D malfunction Shift solenoid A malfunction Shift solenoid C malfunction Pressure control solenoid malfunction Control valve body malfunction Sensor GND malfunction Body GND malfunction Poor hydraulic operation (Malfunction in range change) Forward accumulator malfunction Servo apply accumulator malfunction Idle speed high Poor tightening torque of engine mount, exhaust mount Poor operation of mechanical pressure Selector lever position disparity NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)
NOTE
Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)

NO.18 EXCESSIVE SHIFT SHOCK IS FELT WHEN UPSHIFTING AND DOWNSHIFTING [FN4A-EL]

18Excessive shift shock is felt when upshifting and downshifting
DESCRIPTIONExcessive shift shock is felt when depressing accelerator pedal to accelerate at upshifting. During cruising, excessive shift shock is felt when depressing accelerator pedal at downshifting.
POSSIBLE CAUSEShift shock may worsen when fail-safe is operating. Shift shock has worsened if APP sensor, input/turbine speed sensor, or VSS signal malfunctions. Clutch slipped, burned (Forward clutch, 2-4 brake band, 3-4 clutch) Line pressure low, high Shift solenoid D malfunction Shift solenoid E malfunction Shift solenoid A malfunction Shift solenoid B malfunction Shift solenoid C malfunction Pressure control solenoid malfunction APP sensor malfunction Control valve body malfunction Body GND malfunction Signal malfunction TFT sensor malfunction VSS malfunction Sensor GND malfunction APP sensor malfunction Input/turbine speed sensor malfunction Poor hydraulic operation (Malfunction in range change) Forward accumulator malfunction Servo apply accumulator malfunction NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)
NOTE
Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)

NO.22 NO ENGINE BRAKING IN O/D OFF MODE [FN4A-EL]

22No engine braking in O/D OFF mode
DESCRIPTIONEngine speed drops to idle but vehicle coasts when accelerator pedal is released during cruising at medium to high speeds.
POSSIBLE CAUSEClutch 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 Signal malfunction VSS malfunction Sensor GND malfunction Input/turbine speed sensor malfunction O/D OFF switch ON not judged by PCM. (Short or open circuit, poor operation) O/D OFF switch signal malfunction NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)
NOTE
Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)

NO.23 TRANSAXLE OVERHEATS [FN4A-EL]

23Transaxle overheats
DESCRIPTIONBurnt smell emitted from transaxle. Smoke is emitted from transaxle.
POSSIBLE CAUSEMalfunction is restricted to hindrance of coolant at oil cooler. In addition, overheating of transaxle may be caused by a malfunction of TFT sensor. Burned (TCC) Line pressure low Control valve body malfunction APP sensor malfunction Oil cooler malfunction (Foreign material mixed ATF) TFT sensor malfunction Excessive amount of ATF Torque converter malfunction NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)
NOTE
Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [FN4A-EL] .)

NO.24 ENGINE STALLS WHEN SHIFTED TO D, 2, 1 OR R POSITION [FN4A-EL]

24Engine stalls when shifted to D, 2, 1 or R position
DESCRIPTIONEngine stalls when shifting from the N or P position to the D, 2, 1 or R position at idle.
POSSIBLE CAUSEMalfunction is on engine control side (i.e. electronic throttle control system). Otherwise, malfunction is in input/turbine speed sensor (engine sometimes starts) or TCC circuit (engine always stalls).

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

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

NO.26 STARTER DOES NOT WORK [FN4A-EL]

26Starter does not work
DESCRIPTIONStarter does not work even when the P or N position is shifted.
POSSIBLE CAUSESelector lever misadjustment TR switch misadjustment Open or short circuit in TR switch

NO.27 O/D OFF INDICATOR LIGHT DOES NOT ILLUMINATE WHEN O/D OFF SWITCH IS TURNED TO ON [FN4A-EL]

27O/D OFF indicator light does not illuminate when O/D OFF switch is turned to ON
DESCRIPTIONO/D OFF indicator light in dashboard does not illuminate when O/D OFF switch is turned to on and ignition switched to ON.
POSSIBLE CAUSEO/D OFF switch (built-in selector lever component), O/D OFF indicator light or related wiring harness malfunction

NO.28 O/D OFF INDICATOR LIGHT ILLUMINATES WHEN O/D OFF SWITCH IS NOT TURNED TO ON [FN4A-EL]

28O/D OFF indicator light illuminates when O/D OFF switch is not turned to ON
DESCRIPTIONO/D OFF indicator light in dashboard illuminates even though O/D OFF switch turned to off and ignition switched to ON.
POSSIBLE CAUSEO/D OFF switch (built-in selector lever component) or related wiring harness malfunction