Mazda Protege 5. Manual — part 239
SYMPTOM TROUBLESHOOTING
05–03–15
05–03
NO.12 TORQUE CONVERTER CLUTCH (TCC) NON-OPERATION
A3U050301030W16
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
NO.13 NO KICKDOWN
A3U050301030W17
End Of Sie
12
Torque converter clutch (TCC) non-operation
DESCRIPTION
•
TCC does not operate when vehicle reaches TCC operation range.
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 burned
•
TP sensor malfunction
•
TFT sensor malfunction
•
VSS malfunction
•
Input/turbine speed sensor malfunction
•
Sensor GND malfunction
•
Shift solenoid D malfunction (Sticking)
•
Shift solenoid E malfunction (Sticking)
•
Shift solenoid A malfunction (Sticking)
•
Shift solenoid B malfunction (Sticking)
•
Shift solenoid C malfunction (Sticking)
•
TCC hydraulic pressure system (Poor operation, sticking)
b. TP sensor malfunction (Not operating linearly)
c. Input/turbine speed sensor or VSS malfunction
STEP
INSPECTION
ACTION
1
•
Remove torque converter.
•
Inspect torque converter.
(See ATX Workshop Manual.)
•
Is torque converter 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
Replace torque converter.
13
No kickdown
DESCRIPTION
•
Does not downshift when accelerator pedal is fully depressed within kickdown range.
POSSIBLE
CAUSE
•
If the transaxle does not downshift though shifting is normal, the malfunction is in the TP sensor circuit
(including the sensor GND, sensor harness and connector).
1712-1U-01G(05-03).fm 15 ページ 2001年6月29日 金曜日 午前10時8分
SYMPTOM TROUBLESHOOTING
05–03–16
NO.14 ENGINE FLARES UP OR SLIPS WHEN UPSHIFTING OR DOWNSHIFTING
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End Of Sie
NO.15 ENGINE FLARES UP OR SLIPS WHEN ACCELERATING VEHICLE
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End Of Sie
NO.16 JUDDER UPON TORQUE CONVERTER CLUTCH (TCC) OPERATION
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End Of Sie
14
Engine flares up or slips when upshifting or downshifting
DESCRIPTION
•
When accelerator pedal is depressed at start, engine speed increases normally but vehicle speed
increase slowly.
•
When accelerator pedal is depressed while driving, engine speed increases but vehicle speed does
not.
POSSIBLE
CAUSE
•
There is clutch slip because the clutch is stuck or the line pressure is low.
a. Clutch stuck, slippage (forward clutch, 3–4 clutch, low and reverse brake, 2–4 brake band, one-way
clutch)
•
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
•
Pressure control solenoid malfunction
•
Body GND malfunction
•
Accelerator cable misadjustment
•
Control valve body malfunction
b. Poor operation of mechanical pressure
•
Selector lever position disparity
•
TR switch position disparity
15
Engine flares up or slips when accelerating vehicle
DESCRIPTION
•
Engine flares up when accelerator pedal is depressed for upshifting.
•
Engine flares up suddenly when accelerator pedal is depressed for downshifting.
POSSIBLE
CAUSE
•
The malfunction is basically the same as for No.14 “Engine flares up or slips when upshifting or
downshifting”.
— If conditions for No.14 worsen, the malfunction will develop to No.15.
16
Judder upon torque converter clutch (TCC) operation
DESCRIPTION
•
Vehicle jolts when TCC is engaged.
POSSIBLE
CAUSE
•
Poor TCC engagement due to either slippage because the TCC is stuck or the line pressure is low.
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 piston slippage, burned
•
Line pressure low
•
TP sensor malfunction or misadjustment
•
VSS malfunction
•
Input/turbine speed sensor malfunction
•
Shift solenoid A malfunction
•
Control valve body malfunction
b. Torque converter malfunction
1712-1U-01G(05-03).fm 16 ページ 2001年6月29日 金曜日 午前10時8分
SYMPTOM TROUBLESHOOTING
05–03–17
05–03
NO.17 EXCESSIVE SHIFT SHOCK FROM N TO D OR N TO R POSITION/RANGE
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End Of Sie
NO.18 EXCESSIVE SHIFT SHOCK WHEN UPSHIFTING AND DOWNSHIFTING
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End Of Sie
NO.19 EXCESSIVE SHIFT SHOCK ON TORQUE CONVERTER CLUTCH (TCC)
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End Of Sie
NO.20 NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN ALL POSITIONS/RANGES
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17
Excessive shift shock from N to D or N to R position/range
DESCRIPTION
•
Strong shock is felt when shifting from N to D or N to R position/range at idle.
POSSIBLE
CAUSE
•
Shift shock may worsen when the fail-safe is operating. If no DTC is output, the shift shock may worsen
due to poor operation of the control valve body or sticking of the clutch.
a. Clutch burned (N
→
D: Forward clutch, N
→
R: Reverse clutch or low and reverse brake)
•
Line pressure low
•
TP sensor malfunction
•
VSS malfunction
•
Input/turbine speed sensor malfunction
•
Accelerator cable misadjustment
•
Control valve body malfunction
b. Poor hydraulic operation (Malfunction in range change)
•
Servo apply accumulator malfunction
c. Idle speed high
d. Poor tightening torque of engine mount and/or exhaust mount
18
Excessive shift shock when upshifting and downshifting
DESCRIPTION
•
Excessive 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
CAUSE
•
Shift shock may worsen when the fail-safe is operating. The shift shock may also worsen if the TP
sensor, input/turbine speed sensor, or VSS signal malfunctions.
a. Clutch slippage, burned (2–4 brake band, 3–4 clutch)
•
Line pressure low, high
•
TP sensor malfunction
•
VSS malfunction
•
Input/turbine speed sensor malfunction
•
TFT sensor 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
•
Accelerator cable misadjustment
•
Control valve body malfunction
b. Poor hydraulic operation (Malfunction in range change)
•
Forward accumulator malfunction
•
Servo apply accumulator malfunction
19
Excessive shift shock on torque converter clutch (TCC)
DESCRIPTION
•
Strong shock is felt when TCC is engaged.
POSSIBLE
CAUSE
•
The troubleshooting flow is the same as for No.16 “Judder (Intense vibration) upon torque converter
clutch (TCC) operation”.
20
Noise occurs at idle when vehicle is stopped in all positions/ranges
DESCRIPTION
•
Transaxle is noisy in all positions and ranges when vehicle is idling.
POSSIBLE
CAUSE
•
The malfunction is in the oil pump which causes a high-pitched noise to be emitted from the transaxle at
idle.
Note
•
If a noise is emitted during shifting only, the malfunction is in shift solenoid D, E or duty solenoid
valves.
•
If a noise is emitted during shifting at certain gears only or during deceleration only, it is gear
noise.
1712-1U-01G(05-03).fm 17 ページ 2001年6月29日 金曜日 午前10時8分
SYMPTOM TROUBLESHOOTING
05–03–18
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
NO.21 NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN D, 2, 1 RANGES, OR IN R POSITION
A3U050301030W25
End Of Sie
NO.22 NO ENGINE BRAKING IN O/D OFF MODE
A3U050301030W26
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
STEP
INSPECTION
ACTION
1
•
Inspect engine condition.
•
Is there engine concern (i.e. rough idle)?
Yes
Go to appropriate symptom troubleshooting.
(See 01–03A–7 SYMPTOM DIAGNOSTIC INDEX [ZM].)
(See 01–03B–7 SYMPTOM DIAGNOSTIC INDEX [FS].)
No
Repeat basic inspection and repair or replace any defective
parts according to inspection result.
(See 05–03–6 AUTOMATIC TRANSAXLE BASIC
INSPECTION.)
21
Noise occurs at idle when vehicle is stopped in D, 2, 1 ranges, or in R position
DESCRIPTION
•
Transaxle is noisy in driving ranges when vehicle is idling.
POSSIBLE
CAUSE
•
Although the malfunction is basically the same as No.20 “Noise occurs at idle when vehicle is stopped
in all positions/ranges”, other causes may be selector lever or TR switch not adjusted properly.
22
No engine braking in O/D OFF 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 1 range at
low vehicle speed.
POSSIBLE
CAUSE
a. Clutch slippage, or burned (low and reverse brake)
•
Line pressure low
•
VSS malfunction
•
Input/turbine speed sensor malfunction
•
TP sensor malfunction
•
Control valve body malfunction
b. O/D OFF switch on but not recognized by PCM (short, or open circuit, poor operation)
•
O/D OFF switch signal malfunction
STEP
INSPECTION
ACTION
1
•
Do following symptoms occur concurrently?
•
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 05–03–6 AUTOMATIC TRANSAXLE BASIC
INSPECTION.)
1712-1U-01G(05-03).fm 18 ページ 2001年6月29日 金曜日 午前10時8分
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