Mazda Protege 5. Manual - part 238

 

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Mazda Protege 5. Manual - part 238

 

 

SYMPTOM TROUBLESHOOTING 

05–03–11

05–03

NO.1 VEHICLE DOES NOT MOVE IN D, 2, 1 RANGES, OR IN R POSITION

A3U050301030W05

End Of Sie

NO.2 VEHICLE MOVES IN N POSITION

A3U050301030W06

End Of Sie

NO.3 VEHICLE MOVES IN P POSITION, OR PARKING GEAR DOES NOT DISENGAGE WHEN P IS 
DISENGAGED

A3U050301030W07

End Of Sie

NO.4 EXCESSIVE CREEP

A3U050301030W08

End Of Sie

1

Vehicle does not move in D, 2, 1 ranges, or in R position

DESCRIPTION

Vehicle does not move when accelerator pedal is depressed.

POSSIBLE 

CAUSE

If the vehicle does not move in D, 2, 1 ranges or R position, basically, the malfunction is in the ATX. 
(Vehicle will move even with a malfunction in the PCM.) Since a malfunction in the sensor circuit or 
output circuit is the cause of the malfunction in the ATX, inspect the sensors, output circuit, and the 
related harnesses.
a. Clutch slippage, worn (D, 2, 1 ranges - Forward clutch, R position - Reverse clutch, Low and reverse 

brake)

Line pressure low

Sensor GND malfunction

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

b. Selector lever malfunction
c. Parking mechanism not operating properly
d. Torque converter malfunction

2

Vehicle moves in N position

DESCRIPTION

Vehicle creeps in N position.

Vehicle creeps if brake pedal is not depressed in N position.

POSSIBLE 

CAUSE

If the vehicle moves in N position, basically, the malfunction is in the ATX. Since a malfunction in the 
sensor circuit or output circuit is the cause of the malfunction in the ATX, inspect the sensors, output 
circuit, and the related harnesses.
a. Clutch burned (Forward clutch)

Control valve body malfunction

b. Selector lever position disparity (Although the selector illumination shows N position, the hydraulic 

circuit shows D range or R position)

3

Vehicle moves in P position, or parking gear does not disengage when P is disengaged

DESCRIPTION

Vehicle rolls when on a downward slope and tires do not lock in P position.

Tires are locked when P is disengaged. Vehicle does not move in D, 2, 1 ranges, and R position when 
accelerator pedal is depressed, and engine remains in stall condition.

POSSIBLE 

CAUSE

Parking mechanism malfunction (May have effect on noise or shock from transaxle)

Improper adjustment of selector lever

If vehicle moves in N position, perform No.2 “Vehicle moves in N position”

4

Excessive creep

DESCRIPTION

Vehicle accelerates in D, 2, 1 ranges, and R position without depressing accelerator pedal.

POSSIBLE 

CAUSE

Engine idle speed high (transaxle system is not cause of problem)

Go to symptom troubleshooting No.8 “Fast idle/runs on”.
(See 01–03A–7 SYMPTOM DIAGNOSTIC INDEX [ZM].)
(See 01–03B–7 SYMPTOM DIAGNOSTIC INDEX [FS].)

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SYMPTOM TROUBLESHOOTING 

05–03–12

NO.5 NO CREEP AT ALL

A3U050301030W09

End Of Sie

NO.6 LOW MAXIMUM SPEED AND POOR ACCELERATION

A3U050301030W10

Diagnostic procedure

Note

If malfunction remains, inspect related Service Bulletins and perform repair or diagnosis.

If vehicle is repaired, troubleshooting is completed.

If vehicle is not repaired or additional diagnostic information is not available, replace PCM.

End Of Sie

5

No creep at all

DESCRIPTION

Vehicle does not move in D, 2, 1 ranges, or R position when idling on flat paved road.

POSSIBLE 

CAUSE

Either the transaxle is stuck in 3GR or 4GR position, or there is clutch circuit slippage because the 3–4 
clutch is stuck.
a. Clutch burned

Line pressure low

Shift solenoid D malfunction

Shift solenoid A malfunction

Shift solenoid B malfunction

Pressure control solenoid malfunction

Body GND malfunction

Control valve body malfunction

b. Transaxle fixed in 3GR (Operation of fail-safe function)

Short or open circuit in wiring

Poor connection of connector

Electronic parts of output and input system are malfunctioning

c. Engine torque is not produced

Torque converter is malfunctioning

6

Low maximum speed and poor acceleration

DESCRIPTION

Vehicle acceleration is poor at start.

Delayed acceleration when accelerator pedal is depressed while driving.

POSSIBLE 

CAUSE

If the clutch is stuck or does not stay in 3GR, the malfunction is in the engine circuit.
a. Clutch slippage, burned

Line pressure low

TP sensor malfunction

VSS malfunction

Input/turbine speed sensor malfunction

Sensor GND malfunction

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

b. Transaxle fixed in 3GR (Operation of fail-safe function)

Short or open circuit in wiring

Poor connection of connector

Electronic parts of output and input system are malfunctioning

c. Insufficient starting torque (Suspected when in-gear condition, shift control and engine circuit are 

normal)

Torque converter is malfunctioning (Poor operation, sticking)

d. Engagement of TCC operation range (Operation of fail-safe function)

TFT sensor malfunction (Short or open circuit)

STEP

INSPECTION

ACTION

1

Go to symptom troubleshooting No.11 “Lack/
loss of power”.
(See 01–03A–7 SYMPTOM DIAGNOSTIC 
INDEX [ZM].)
(See 01–03B–7 SYMPTOM DIAGNOSTIC 
INDEX [FS].)

Is engine control system okay?

Yes

Repeat basic inspection and repair or replace any defective 
parts according to inspection result.
(See 05–03–6 AUTOMATIC TRANSAXLE BASIC 
INSPECTION.)

No

Repair or replace any defective parts according to 
inspection results.

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SYMPTOM TROUBLESHOOTING 

05–03–13

05–03

NO.7 NO SHIFTING

A3U050301030W11

End Of Sie

NO.8 DOES NOT SHIFT TO FOURTH GEAR (4GR)

A3U050301030W12

End Of Sie

7

No shifting

DESCRIPTION

Single shift range only.

Sometimes it shifts correctly.

POSSIBLE 

CAUSE

When the gear position is fixed in 3GR due to the fail-safe operation, the malfunction is in the ATX.

Perform malfunction diagnosis according to No.6 “Low maximum speed and poor acceleration”.
a. Clutch burned

Line pressure low

VSS malfunction

Input/turbine speed sensor malfunction

Sensor GND malfunction

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

b. Transaxle fixed in 3GR (Operation in fail-safe function)

Short or open circuit in wiring

Poor connection of connector

Disconnected shift solenoid connector

Poor GND of shift solenoid

8

Does not shift to fourth gear (4GR)

DESCRIPTION

Vehicle does not upshift from 3GR to 4GR even though vehicle speed is increased.

Vehicle does not shift to 4GR even though accelerator pedal is released in D range at 60 km/h {37 
mph}
.

POSSIBLE 

CAUSE

Basically, the TCC does not operate when the fail-safe is operating. Verify the DTC first. If the TCC 
operates when driving at high speeds only, the malfunction (improper adjustment) is in the O/D OFF 
switch circuit or TR switch circuit.

Caution

••••

If the TCC is stuck, inspect it. In addition, inspect the oil cooler for foreign particles which 
may have mixed in with the ATF.

a. TCC slippage, burned

Line pressure low

TP sensor malfunction

ECT sensor malfunction

VSS malfunction

Input/turbine speed sensor malfunction

Sensor GND malfunction

b. TFT sensor malfunction

Short or open circuit in wiring

Poor connection of connector

Sensor malfunction

c. TR switch malfunction

Short or open circuit in wiring

Poor connection of connector

Sensor malfunction

Selector lever adjustment incorrect

TR switch adjustment incorrect

d. Shift solenoid A, shift solenoid E malfunction

Short or open circuit in wiring

Poor connection of connector

Solenoid valve stuck

e. O/D OFF switch malfunction
f. Torque converter malfunction
g. Control valve body malfunction

1712-1U-01G(05-03).fm  13 ページ  2001年6月29日 金曜日 午前10時8分

SYMPTOM TROUBLESHOOTING 

05–03–14

NO.9 ABNORMAL SHIFTING

A3U050301030W13

End Of Sie

NO.10 FREQUENT SHIFTING

A3U050301030W14

End Of Sie

NO.11 SHIFT POINT IS HIGH OR LOW

A3U050301030W15

End Of Sie

9

Abnormal shifting

DESCRIPTION

Shift incorrectly (incorrect shift pattern).

POSSIBLE 

CAUSE

There is a malfunction in the signal circuit which controls shifting (TP sensor, input/turbine speed 
sensor, VSS), the control valve is stuck, the accumulator (forward or servo apply) is stuck, or the clutch 
circuit is stuck.
a. Clutch slippage, burned

Line pressure low

TP sensor malfunction or misadjustment

VSS malfunction

Input/turbine speed sensor malfunction

Sensor GND malfunction

Shift solenoid D malfunction

Shift solenoid E malfunction

Shift solenoid A malfunction

Shift solenoid B malfunction

Shift solenoid C malfunction

Body GND malfunction

Accelerator cable misadjustment

Control valve body malfunction

10

Frequent shifting

DESCRIPTION

Downshifting occurs immediately even when accelerator pedal is depressed slightly in D, 2, 1 ranges 
except O/D OFF mode.

POSSIBLE 

CAUSE

The circuit which is the cause is basically the same as for No.9 “Abnormal shifting”. However, a 
malfunction of the input signal to the TP sensor, input/turbine speed sensor, VSS (including the sensor 
GND, sensor harness and connector), or clutch slippage (clutch stuck, low pressure in line) may also be 
the cause.

11

Shift point is high or low

DESCRIPTION

Shift point is considerably different from automatic shift diagram.

Shift delays when accelerating.

Shift occurs quickly when accelerating and engine speed does not increase.

POSSIBLE 

CAUSE

If the transaxle shift abnormal, there is a malfunction of the input signal to the TP sensor, input/turbine 
speed sensor, or VSS.

If the engine speed is high or low regardless that shifting is normal, inspect the tachometer.

Verify that the output signal of the TP sensor changes linearly.

1712-1U-01G(05-03).fm  14 ページ  2001年6月29日 金曜日 午前10時8分

 

 

 

 

 

 

 

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