Mazda 6. Manual - part 222

 

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Mazda 6. Manual - part 222

 

 

TROUBLESHOOTING 

K–129

K

NO.22 NO ENGINE BRAKING IN HOLD MODE

A6E568001030W26

Diagnostic procedure

End Of Sie

NO.23 TRANSAXLE OVERHEATS

A6E568001030W27

Diagnostic procedure

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.

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 

K–112 BASIC INSPECTION

.)

23

Transaxle overheats

DESCRIPTION

• Burnt smell emitted from transaxle.

• Smoke emitted from transaxle.

POSSIBLE 

CAUSE

• The malfunction is restricted to hindrance of coolant at the oil cooler. In addition, overheating of the 

transaxle may be caused by a malfunction of the transaxle fluid temperature sensor.
1. Burned (TCC)

• Line pressure low

• Control valve body malfunction

• Accelerator cable misadjustment

2. Oil cooler malfunction (Foreign material mixed ATF)
3. Transaxle fluid temperature sensor malfunction
4. Excessive amount of ATF
5. Torque converter malfunction

Note

• Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic 

and Automatic Transaxle Basic Inspection are conducted.

STEP

INSPECTION

ACTION

1

• Inspect for bent, damage, corrosion or kinks 

of oil cooler pipes.

• Are oil cooler pipes okay?

Yes

Go to next step.

No

Replace any defective parts.

2

• Perform the stall test.

(See 

K–7 Stall Test

.)

• Is stall speed okay?

Yes

Go to next step.

No

Repair or replace any defective parts.

3

• Check the value at the following PID using 

the WDS or equivalent.
(See 

F–45 PCM INSPECTION

.)

— TP

• Is PID value okay?

Yes

Go to next step.

No

Repair or replace any defective parts.

K–130

TROUBLESHOOTING 

End Of Sie

NO.24 ENGINE STALLS WHEN SHIFTED TO D, S, L RANGES, OR IN R POSITION

A6E568001030W28

Diagnostic procedure

End Of Sie

NO.25 ENGINE STALLS WHEN DRIVING AT SLOW SPEEDS OR STOPPING

A6E568001030W29

Diagnostic procedure

End Of Sie

NO.26 STARTER DOES NOT WORK

A6E568001030W30

End Of Sie

NO.27 HOLD INDICATOR LIGHT DOES NOT ILLUMINATE WHEN HOLD SWITCH IS TURNED TO ON

A6E568001030W31

4

• Disconnect PCM.

• Is resistance between ground terminal at 

PCM connector and body ground less than 
5.0 ohms?

Yes

Go to next step.

No

Repair open ground circuit.
Reconnect PCM.

5

• Check LPS PID value.

• Is LPS PID value okay?

(See 

F–45 PCM INSPECTION

.)

Yes

Overhaul control valve body and repair or replace any 
defective parts.
If problem remains, overhaul transaxle and repair or replace 
any defective parts.
(See ATX workshop manual (FN4A-EL) [1623-10-98E].) 
(See ATX workshop manual supplement (FN4A-EL) 
[1746-1*-02C].)

No

Repair or replace any defective parts.

STEP

INSPECTION

ACTION

24

Engine stalls when shifted to D, S, L ranges, or in R position

DESCRIPTION

• Engine stalls when shifting from N or P position to D, S, L ranges or R position at idle.

POSSIBLE 

CAUSE

• The malfunction is on the engine control side (i.e. IAC system). Otherwise, the malfunction is in the 

input/turbine speed sensor (engine sometimes starts) or TCC circuit (engine always stalls).

STEP

INSPECTION

ACTION

1

• Go to symptom troubleshooting No.10 “Low 

idle/stalls during deceleration”.
(See 

F–202 NO.10 LOW IDLE/STALLS 

DURING DECELERATION

.)

• Is engine control system okay?

Yes

Repeat basic inspection and repair or replace any defective 
parts according to inspection result.
(See 

K–112 BASIC INSPECTION

.)

No

Repair or replace any defective parts according to 
inspection results.

25

Engine stalls when driving at slow speeds or stopping

DESCRIPTION

• Engine stalls when brake pedal is depressed while driving at low speed or stopping.

POSSIBLE 

CAUSE

• The malfunction on engine control side (e.g. Fuel injection control, IAC system) Otherwise, the 

malfunction is in the control valve body, shift solenoid E or TCC.

STEP

INSPECTION

ACTION

1

• Go to symptom troubleshooting No.9 “Low 

idle/stalls during deceleration”.
(See 

F–201 NO.9 FAST IDLE/RUNS ON

.)

• Does engine control system okay?

Yes

Go to next step.

No

Repair or replace any defective parts according to 
inspection results.

2

• Go to symptom troubleshooting No.4 "Engine 

Stalls."
(See 

F–189 NO.4 HARD TO START/LONG 

CRANK/ERRATIC START/ERRATIC 
CRANK

.)

• Is engine control system okay?

Yes

Repeat basic inspection and repair or replace any defective 
parts according to inspection result.
(See 

K–112 BASIC INSPECTION

.)

No

Repair or replace any defective parts according to 
inspection results.

26

Starter does not work

DESCRIPTION

• Starter does not work even when P or N position.

POSSIBLE 

CAUSE

• Selector lever misadjustment

• TR switch misadjustment

• Open or short circuit in TR switch

27

HOLD indicator light does not illuminate when HOLD switch is turned to ON

DESCRIPTION

• HOLD indicator light in dashboard does not illuminate when HOLD switch is turned on and IG SW at 

ON.

POSSIBLE 

CAUSE

• HOLD switch, HOLD indicator light or related wiring harness malfunction.

TROUBLESHOOTING 

K–131

K

Diagnostic procedure

End Of Sie

NO.28 HOLD INDICATOR LIGHT ILLUMINATES WHEN HOLD SWITCH IS NOT TURNED TO ON

A6E568001030W32

Diagnostic procedure

End Of Sie

STEP

INSPECTION

ACTION

1

• Are other indicator lights illuminated with 

ignition switch is at ON?

Yes

Inspect meter fuse.

No

Go to next step.

2

• Check the HOLD switch

(See 

K–13 HOLD SWITCH INSPECTION

.)

• Is HOLD switch okay?

Yes

Go to next step.

No

Repair or replace any defective parts.

3

• Disconnect PCM.

• Turn ignition switch on.

• Is voltage between 3Q terminal at the PCM 

connector and body ground greater than 
10.5 V?

Yes

Replace PCM.

No

Reconnect PCM.
Go to next step.

4

• Check the HOLD indicator light.

• Is HOLD indicator light okay?

Yes

Inspect for open circuit or disconnected connector in 
harness between the following:

• Ignition switch and HOLD indicator light

• HOLD indicator light and PCM

No

Repair or replace any defective parts.

28

HOLD indicator light illuminates when HOLD switch is not turned to ON

DESCRIPTION

• HOLD indicator light in dashboard illuminates even though HOLD switch is turned off and IG SW at ON.

POSSIBLE 

CAUSE

• HOLD switch or related wiring harness malfunction.

STEP

INSPECTION

ACTION

1

• Check the HOLD switch

(See 

K–13 HOLD SWITCH INSPECTION

.)

• Is HOLD switch okay?

Yes

Go to next step.

No

Repair or replace any defective parts.

2

• Disconnect PCM.

• Turn ignition switch off.

• Is resistance between 3Q terminal at the 

PCM connector and body ground greater 
than 10 kilohms?

Yes

Replace PCM.

No

Repair short circuit between HOLD indecator light and 
PCM.
Reconnect PCM.

 

 

 

 

 

 

 

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