Mazda CX-9 Grand Touring. Manual - part 534

 

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Mazda CX-9 Grand Touring. Manual - part 534

 

 

DIAGNOSTIC PROCEDURE 

DTC B241A - DIAGNOSTIC PROCEDURE 

CONDITION 

more.

POSSIBLE CAUSE 

Short to GND in wiring harness between PLG control module terminal 3A and 
PLG touch sensor (RH) terminal B  

Short to GND in wiring harness between PLG control module terminal 3B and 
PLG touch sensor (LH) terminal B  

PLG touch sensor malfunction  

PLG control module malfunction  

STEP

INSPECTION

ACTION

1

INSPECT PLG TOUCH SENSOR  

Inspect the PLG touch sensor. 

(See POWER LIFTGATE (PLG) 
TOUCH SENSOR 
INSPECTION
 .) 

Is the touch sensor normal?  

Yes Go to the next step.

No

Replace the PLG touch sensor. 

(See POWER LIFTGATE (PLG) TOUCH 

SENSOR REMOVAL/INSTALLATION .) 

Go to Step 3.

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES On-Board Diagnostic (Power Liftgate (PLG) System) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:46:08 AM

Page 12 

© 2005 Mitchell Repair Information Company, LLC. 

DTC B266A [POWER LIFTGATE (PLG) SYSTEM] 

DTC B266A - DETECTION CONDITION POSSIBLE CAUSE CHART 

2

INSPECT THE FOLLOWING 
WIRING HARNESSES
  

Disconnect the PLG control module 
connector.  

Disconnect the PLG touch sensor 
connector.  

Inspect for a short circuit to ground 
system between the following 
wiring harnesses: 

PLG control module terminal 
3A and PLG touch sensor 
(RH) terminal B  

PLG control module terminal 
3B and PLG touch sensor 
(LH) terminal B  

Is the wiring harness normal?  

Yes Go to the next step.

No

Repair or replace the wiring harness. 

Go to the next step.

3

VERIFY CORRECTION 
COMPLETED
  

Reconnect the disconnected 
connector.  

Clear the DTC.  

Is DTC B241A stored after 5 min 
or more
 have elapsed?  

Yes

Replace the PLG control module. 
(See POWER LIFTGATE (PLG) CONTROL 
MODULE REMOVAL/INSTALLATION
 .)

No

DTC troubleshooting completed.

DTC B266A

Rotation sensor circuit malfunction

DETECTION 

CONDITION 

A short circuit to ground in the PLG drive unit (rotation sensor) continues for 5 min 
or more.

POSSIBLE CAUSE 

Short to GND in wiring harness between PLG control module terminal 2K and 
PLG drive unit terminal E  

Rotation sensor malfunction  

PLG control module malfunction  

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES On-Board Diagnostic (Power Liftgate (PLG) System) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:46:08 AM

Page 13 

© 2005 Mitchell Repair Information Company, LLC. 

DIAGNOSTIC PROCEDURE 

DTC B266A - DIAGNOSTIC PROCEDURE 

STEP

INSPECTION

ACTION

INSPECT WIRING HARNESS 
BETWEEN PLG CONTROL UNIT AND 
PLG DRIVE UNIT
  

Replace the PLG drive unit. 

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES On-Board Diagnostic (Power Liftgate (PLG) System) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:46:08 AM

Page 14 

© 2005 Mitchell Repair Information Company, LLC. 

DTC B266B [POWER LIFTGATE (PLG) SYSTEM] 

DTC B266B - DETECTION CONDITION POSSIBLE CAUSE CHART 

1

Disconnect the PLG control module 
connector.  

Disconnect the PLG drive unit 
connector.  

Inspect the wiring harness between 
PLG control module terminal 2K and 
PLG drive unit terminal E for a short 
circuit to ground system.  

Yes

(See POWER LIFTGATE (PLG) DRIVE 
UNIT REMOVAL/INSTALLATION
 .) 
Go to the next step.

No

Repair or replace the wiring harness. 

Go to the next step.

2

VERIFY CORRECTION COMPLETED 

Reconnect the disconnected connector. 

Clear the DTC.  

Is DTC B266A stored after 5 min or 
more
 have elapsed?  

Yes

Replace the PLG control module. 
(See POWER LIFTGATE (PLG) 
CONTROL MODULE 
REMOVAL/INSTALLATION
 .)

No

DTC troubleshooting completed.

DTC B266B

Rotation sensor A circuit malfunction

DETECTION 

CONDITION 

Rotation sensor A signal does not change

POSSIBLE 

CAUSE 

Open circuit in wiring harness between PLG control module terminal 2J and PLG 
drive unit terminal F Short to power supply in wiring harness between PLG control 
module terminal 2J and PLG drive unit terminal F  

Short to GND in wiring harness between PLG control module terminal 2J and PLG 
drive unit terminal F  

Rotation sensor malfunction  

PLG control module malfunction  

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES On-Board Diagnostic (Power Liftgate (PLG) System) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:46:08 AM

Page 15 

© 2005 Mitchell Repair Information Company, LLC. 

 

 

 

 

 

 

 

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