Mazda CX-9 Grand Touring. Manual - part 532

CLEARING DTC [POWER LIFTGATE (PLG) SYSTEM]

1. Connect the M-MDS to the DLC-2.  

2. After the vehicle is identified, select the following items from the initialization screen of the M-MDS. 



When using the IDS (laptop PC) 

1. Select "Self Test".  

2. Select "Modules".  

3. Select "LTM".  



When using the PDS (Pocket PC) 

1. Select "Module Tests".  

2. Select "LTM".  

3. Select "Self Test".  

3. Verify the DTC according to the directions on the screen.  

4. Press the clear button on the DTC screen to clear the DTC.  

5. Verify that no DTCs are displayed. 

Fig. 3: Identifying DLC-2 Location 
Courtesy of MAZDA MOTORS CORP. 

PID/DATA MONITOR INSPECTION [POWER LIFTGATE (PLG) SYSTEM] 

1. Connect the M-MDS to the DLC-2.  

2. After the vehicle is identified, select the following items from the initialization screen of the M-MDS. 



When using the IDS (laptop PC) 

1. Select "DataLogger".  

2. Select "Modules".  

3. Select "LTM".  



When using the PDS (Pocket PC) 

1. Select "Module Tests".  

2. Select "LTM".  

 

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 4 

© 2005 Mitchell Repair Information Company, LLC. 

3. Select "DataLogger".  

3. Select the applicable PID from the PID table.  

4. Verify the PID data according to the directions on the screen. 

Fig. 4: Identifying DLC-2 Location 
Courtesy of MAZDA MOTORS CORP. 

PID/DATA MONITOR TABLE [POWER LIFTGATE (PLG) SYSTEM] 

PID/DATA MONITOR CHART 

NOTE:



The PID data screen function is used for monitoring the calculated 
value of input/output signals in the module. Therefore, if the 
monitored value of the output parts is not within the specification, it 
is necessary to inspect the monitored value of input parts 
corresponding to the applicable output part control. In addition, 
because the system does not display an output part malfunction as 
an abnormality in the monitored value, it is necessary to inspect the 
output parts individually.  

PID name 

(definition)

Unit/Condition

Operation Condition (Reference)

Terminal

DTC_CNT 
(Number of 
continuous DTCs)

-

Indicates number of DTC

-

LAT_FULL 
(Liftgate latch and 
lock actuator (full 
latch switch))

Off / On



Full latch switch on: on  



Other: off  

3G

LAT_HALF 
(Liftgate latch and 
lock actuator (half 
latch switch))

Off / On



Half latch switch on: on  



Other: off  

3H

LAT_RTN 
(Liftgate latch and 



Return switch on: on  

 

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 5 

© 2005 Mitchell Repair Information Company, LLC. 

lock actuator (return 
switch))

Off / On



Other: off  

3E

MTR_CLS_CL 
(Closure motor 
(CLOSE))

Off / On



Closure motor (CLOSE) operation: on  



Other: off  

1A

MTR_CLS_OP 
(Closure motor 
(OPEN))

Off / On



Closure motor (OPEN) operation: on  



Other: off  

1B

MTR_PLG_C 
(PLG motor current)

A



Voltage: Refer to 

NOTE:



The values in the graph are a reference 
showing the relation between the elapsed 
period and voltage. The values change 
according to vehicle conditions/status, 
temperature, and battery voltage.  

1E, 1F

MTR_PLG_CL 
(PLG motor 
(CLOSE))

Off/On



PLG motor (CLOSE) operation: on  



Other: off  

1F

MTR_PLG_OP 
(PLG motor 
(OPEN))

Off/On



PLG motor (OPEN) operation: on  



Other: off  

1E

PWR_IG1 
(Ignition 1 (IG1) 
electric source)

Off/On



Ignition switch is at ON: on  



Other: off  

2A

SW_CCL 
(Liftgate latch 
switch)

Off/On



Unlatch (liftgate is open): on  



Latch (liftgate is closed): off  

3F

SW_MAIN 
(PLG front switch)

Off / On



PLG front switch on position: on  



Other: off  

3Q

SW_SUB 
(PLG rear switch)

Off/On



PLG rear switch on position: on  



Other: off  

2B

TCH_L_FLT 
(PLG touch sensor 
(LH) failure)

O.K. / Fault



PLG touch sensor (LH) normal: O.K.  



PLG touch sensor (LH) malfunction: Fault  

3B

TCH_L_ST 
(PLG touch sensor 
(LH) condition)

Off/On



PLG touch sensor (LH) on: on  



Other: off  

3B

TCH_L_V 
(PLG touch sensor 
(LH) voltage)

V

Normal with no obstruction: 2.5 V

3B

TCH_R_FLT 
(PLG touch sensor 
(RH) failure)

O.K. / Fault



PLG touch sensor (RH) normal: O.K.  



PLG touch sensor (RH) malfunction: Fault  

3A

 

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 6 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 5: Current Flow Graph 
Courtesy of MAZDA MOTORS CORP. 

DTC B1311 [POWER LIFTGATE (PLG) SYSTEM] 

DTC B1311 - DETECTION CONDITION POSSIBLE CAUSE CHART 

TCH_R_ST (PLG 
touch sensor (RH) 
condition)

Off/On



PLG touch sensor (RH) on: on  



Other: off  

3A

TCH_R_V 
(PLG touch sensor 
(RH) voltage)

V

Normal with no obstruction: 2.5 V

3A

VPWR 
(Module supply 
voltage)

V

Under any condition: VB

2A, 20

DTC B1311

Door lock-link switch circuit (unlock) failure

DETECTION 

CONDITION

Open circuit in wiring harness between PLG control module and passenger-side door 
lock-link switch



Open circuit in wiring harness between PLG control module terminal 3N and front 

 

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 7 

© 2005 Mitchell Repair Information Company, LLC.