Mazda 6. Manual - part 159

 

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Mazda 6. Manual - part 159

 

 

F–158

ON-BOARD DIAGNOSTIC 

End Of Sie

DTC P0704

A6E397001089W02

14

VERIFY TROUBLESHOOTING OF DTC P0703 
COMPLETED

• Make sure to reconnect all disconnected 

connectors.

• Clear DTC from memory using WDS or 

equivalent.

• Drive vehicle 30 km/h {18.6 mph} or more.

• Depress and release brake pedal more than 8 

times while driving vehicle.

• Is PENDING CODE the same as DTC 

present?

Yes Replace PCM, then go to next step.

(See 

F–43 PCM REMOVAL/INSTALLATION

.)

No

Go to next step.

15

VERIFY AFTER REPAIR PROCEDURE

• Perform “After Repair Procedure”.

(See 

F–66 AFTER REPAIR PROCEDURE

.)

• Is there any DTC present?

Yes Go to applicable DTC troubleshooting.

(See 

F–67 DTC TABLE

.)

No

Troubleshooting completed.

STEP

INSPECTION

ACTION

DTC P0704

Clutch switch circuit malfunction

DETECTION 

CONDITION

• PCM monitors changes in input voltage from clutch switch. If PCM does not detect PCM terminal 1R 

voltage changes while running vehicle with vehicle speed below 30 km/h {19mph} 8 times alternately, 
PCM determines that clutch switch circuit has malfunction.

Diagnostic support note

• This is a continuous monitor (CCM).

• MIL illuminates if PCM detects the above malfunction condition in two consecutive drive cycles or in one 

drive cycle while the DTC for the same malfunction has been stored in the PCM.

• PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.

• FREEZE FRAME DATA is available.

• DTC is stored in PCM memory.

POSSIBLE 

CAUSE

• Clutch switch malfunction

• Poor connection of clutch switch connector or PCM connector.

• Short to ground between clutch switch terminal B and PCM connector terminal 1R.

• Open harness between clutch switch terminal B and PCM connector terminal 1R.

• Open harness between ground and clutch switch terminal D.

• PCM malfunction

ON-BOARD DIAGNOSTIC 

F–159

F

Diagnostic procedure

STEP

INSPECTION

ACTION

1

VERIFY FREEZE FRAME DATA HAS BEEN 
RECORDED

• Has FREEZE FRAME DATA been recorded?

Yes Go to next step.

No

Record FREEZE FRAME DATA on repair order, then go to 
next step.

2

VERIFY RELATED REPAIR INFORMATION 
AVAILABILITY

• Check for related Service information 

availability.

• Is any related Service information available?

Yes Perform repair or diagnosis according to available Service 

information.

• If vehicle is not repaired, go to next step.

No

Go to next step.

3

CLASSIFY HIGH INPUT OR LOW INPUT

• Connect WDS or equivalent to DLC-2.

• Access CPP PID.

• Verify CPP PID during clutch pedal operation.

• Is CPP PID always OFF?.

Yes Go to Next step.

No

Go to Step 10.

4

INSPECT CLUTCH SWITCH CONNECTOR FOR 
POOR CONNECTION

• Turn ignition switch to OFF.

• Disconnect clutch switch connector.

• Inspect for poor connection (damaged/pulled-

out terminals, corrosion, etc.).

• Is there malfunction?

Yes Repair or replace terminal, then go to Step 14.

No

Go to next step.

5

CLASSIFY CLUTCH SWITCH OR CIRCUIT 

• Connect WDS or equivalent to DLC-2.

• Access CPP PID.

• Connect a jumper wire between clutch switch 

terminal B and D.

• Is CPP PID on?

Yes Go to next step.

No

Go to Step 7.

6

INSPECT CLUTCH SWITCH

• Perform clutch switch inspection.

(See 

F–59 CLUTCH SWITCH INSPECTION

.)

• Is clutch switch okay?

Yes Go to Step 14.

No

Replace clutch switch, then go to Step 14.

7

INSPECT CLUTCH SWITCH GROUND CIRCUIT 
FOR OPEN CIRCUIT

• Inspect continuity between clutch switch 

terminal D and ground.

• Is there any continuity?

Yes Go to next step.

No

Repair or replace clutch switch power circuit for open, then 
Go to Step 14.

8

INSPECT PCM CONNECTOR FOR POOR 
CONNECTION

• Turn ignition switch to OFF.

• Disconnect PCM connector.

• Inspect for poor connection (damaged/pulled-

out terminals, corrosion, etc.).

• Is there malfunction?

Yes Repair or replace terminal, then go to Step 14.

No

Go to next step.

9

INSPECT CLUTCH SWITCH SIGNAL CIRCUIT 
FOR OPEN CIRCUIT

• Inspect continuity between clutch switch 

terminal B and PCM terminal 1R.

• Is there any continuity?

Yes Repair or replace harness for open, then go to Step 14.

No

Go to Step 14.

10

INSPECT CLUTCH SWITCH CONNECTOR FOR 
POOR CONNECTION

• Turn ignition switch to OFF.

• Disconnect clutch switch connector.

• Inspect for poor connection (damaged/pulled-

out terminals, corrosion, etc.).

• Is there malfunction?

Yes Repair or replace terminal, then go to Step 14.

No

Go to next step.

11

CLASSIFY CLUTCH SWITCH OR CIRCUIT 

• Connect WDS or equivalent to DLC-2.

• Access CPP PID.

• Verify that CPP PID changes from ON to OFF 

when clutch switch connector disconnected.

• Does CPP PID change from ON to OFF?

Yes Go to next step.

No

Go to Step 13.

12

INSPECT CLUTCH SWITCH

• Perform clutch switch inspection.

(See 

F–59 CLUTCH SWITCH INSPECTION

.)

• Is clutch switch okay?

Yes Go to Step 14.

No

Replace clutch switch, then go to Step 14.

F–160

ON-BOARD DIAGNOSTIC 

End Of Sie

DTC P0850

A6E397001089W03

13

INSPECT CLUTCH SWITCH SIGNAL CIRCUIT 
FOR SHORT TO GROUND

• Inspect continuity between clutch switch 

terminal B and ground.

• Is there any continuity?

Yes Repair or replace harness for short to ground, then go to 

Step 14.

No

Go to Next step.

14

VERIFY TROUBLESHOOTING OF DTC P0704 
COMPLETED

• Make sure to reconnect all disconnected 

connectors.

• Start engine.

• Clear DTC from PCM memory using WDS or 

equivalent.

• Operate clurch pedal during drive vehicle 

below 30 km/h {19 mph} 8 times altemetely.

• Is same DTC present?

Yes Replace PCM, then go to next step.

(See 

F–43 PCM REMOVAL/INSTALLATION

.)

No

Go to next step.

15

VERIFY AFTER REPAIR PROCEDURE

• Perform “After Repair Procedure”.

(See 

F–66 AFTER REPAIR PROCEDURE

.)

• Is there any DTC present?

Yes Go to applicable DTC troubleshooting.

(See 

F–67 DTC TABLE

.)

No

Troubleshooting completed.

STEP

INSPECTION

ACTION

DTC P0850

Neutral switch circuit malfunction

DETECTION 

CONDITION

• PCM monitors changes in input voltage from neutral switch. If PCM does not detect PCM terminal 1W 

voltage changes while running vehicle with vehicle speed  above 30 km/h {19 mph} and clutch pedal turns 
press and depress 10 times repeatedly, PCM determines that neutral switch circuit has malfunction

Diagnostic support note

• This is a continuous monitor (CCM).

• MIL illuminates if PCM detects the above malfunction condition in two consecutive drive cycles or in one 

drive cycle while the DTC for the same malfunction has been stored in the PCM.

• PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.

• FREEZE FRAME DATA is available.

• DTC is stored in PCM memory.

POSSIBLE 

CAUSE

• Neutral switch malfunction

• Poor connection of neutral switch connector or PCM connector.

• Short to ground between neutral switch terminal B and PCM connector terminal 1W.

• Open harness between neutral switch terminal B and PCM connector terminal 1W.

• Open harness between ground and brake switch terminal A.

• PCM malfunction

ON-BOARD DIAGNOSTIC 

F–161

F

Diagnostic procedure

STEP

INSPECTION

ACTION

1

VERIFY FREEZE FRAME DATA HAS BEEN 
RECORDED

• Has FREEZE FRAME DATA been recorded?

Yes Go to next step.

No

Record FREEZE FRAME DATA on repair order, then go to 
next step.

2

VERIFY RELATED SERVICE INFORMATION 
AVAILABILITY

• Check for related Service Information 

availability.

• Is any related Service Information available?

Yes Perform repair or diagnosis according to available Service 

Information.

• If vehicle is not repaired, go to next step.

No

Go to next step.

3

CLASSIFY HIGH INPUT OR LOW INPUT

• Connect WDS or equivalent to DLC-2.

• Access CPP/PNP PID.

• Verify CPP/PNP PID when gear is neutral 

position.

• Is CPP/PNP PID always OFF?.

Yes Go to Next step.

No

Go to Step 10.

4

INSPECT NEUTRAL SWITCH CONNECTOR 
FOR POOR CONNECTION

• Turn ignition switch to OFF.

• Disconnect neutral switch connector.

• Inspect for poor connection (damaged/pulled-

out terminals, corrosion, etc.).

• Is there malfunction?

Yes Repair or replace terminal, then go to Step 14.

No

Go to next step.

5

CLASSIFY NEUTRAL SWITCH OR CIRCUIT 

• Connect WDS or equivalent to DLC-2.

• Access CPP/PNP PID.

• Connect a jumper wire between neutral switch 

terminal A and B.

• Is CPP/PNP PID on?

Yes Go to next step.

No

Go to Step 7.

6

INSPECT NEUTRAL SWITCH

• Perform neutral switch inspection.

(See 

F–59 NEUTRAL SWITCH INSPECTION

.)

• Is neutral switch okay?

Yes Go to Step 14.

No

Replace neutral switch, then go to Step 14.

DTC P0850

Neutral switch circuit malfunction

 

 

 

 

 

 

 

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