Acura RL. Manual - part 844

3. Turn the ignition switch OFF, then turn the ignition switch ON (II) again.  

4. Check for DTCs with the HDS. 

Is DTC 45 indicated?  

YES - Go to step 5. 

NO - The system is OK at this time. 

5. Turn the ignition switch OFF.  

6. Disconnect the TPMS control unit connector A (14P) and B (20P).  

7. Check for continuity between the appropriate terminal in TPMS control unit connector A (14P) and 

body ground (see CONTINUITY CHART). 

CONTINUITY CHART 

Fig. 20: Checking Continuity Between Appropriate Terminal In TPMS Control Unit Connector 
A (14P) And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 8. 

NO - Go to step 11. 

8. Disconnect all four of the initiator 3P connectors.  

9. Check for continuity between the appropriate terminal in TPMS control unit connector A (14P) and 

body ground (see CONTINUITY CHART). 

CONTINUITY CHART 

Terminal name TPMS control unit terminal

RF LF PWR.

No. 9

LF LF PWR.

No. 8

RR LF PWR.

No. 11

LR LF PWR.

No. 10

Terminal name TPMS control unit terminal

 

2007 Acura RL 

2005-08 SUSPENSION TPMS (Tire Pressure Monitoring System) - RL

  

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© 2005 Mitchell Repair Information Company, LLC. 

Fig. 21: Checking Continuity Between Appropriate Terminal In TPMS Control Unit Connector 
A (14P) And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Repair short to body ground in the wire between the TPMS control unit and the initiators. 

NO - Go to step 10. 

10. On each individual initiator, check for continuity between body ground and initiator 3P connector 

terminal No. 1. 

Fig. 22: Checking Continuity Between Body Ground And Initiator 3P Connector Terminal No. 
1 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Replace the appropriate initiator (see INITIATOR REPLACEMENT ). 

RF LF PWR.

No. 9

LF LF PWR.

No. 8

RR LF PWR.

No. 11

LR LF PWR.

No. 10

NOTE:

Check the initiators when mounted on the vehicle.

 

2007 Acura RL 

2005-08 SUSPENSION TPMS (Tire Pressure Monitoring System) - RL

  

me 

 

Friday, June 05, 2009 3:22:24 PM

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© 2005 Mitchell Repair Information Company, LLC. 

NO - Check for loose terminals and poor connections at the TPMS control unit. If necessary, 
substitute a known-good TPMS control unit (see TPMS INDICATOR OR TIRE(S) INDICATOR
(S) DOES NOT GO OFF, AND NO DTCS ARE STORED ), and recheck. 

11. Check for continuity between the appropriate terminal in TPMS control unit connector A (14P) and 

connector B (20P) terminals. 

CONTINUITY CHART 

Fig. 23: Checking Continuity Between Appropriate Terminal In TPMS Control Unit Connector 
A (14P) And Connector B (20P) Terminals 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 12. 

NO - Go to step 15. 

12. Disconnect all four of the initiator 3P connectors.  

13. Check for continuity between the appropriate terminal in TPMS control unit connector A (14P) and 

connector B (20P) terminals. 

CONTINUITY CHART 

Tire location

TPMS control unit terminal name/No.

Connector A (14P) Connector B (20P)

Right-front

RF LF PWR./9

RF LF GND/14

Left-front

LF LF PWR./8

LF LF GND/13

Right-rear

RR LF PWR./11

RR LF GND/16

Left-rear

LR LF PWR./10

LR LF GND/15

TPMS control unit terminal name/No.

 

2007 Acura RL 

2005-08 SUSPENSION TPMS (Tire Pressure Monitoring System) - RL

  

me 

 

Friday, June 05, 2009 3:22:24 PM

Page 31 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 24: Checking Continuity Between Appropriate Terminal In TPMS Control Unit Connector 
A (14P) And Connector B (20P) Terminals 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Repair the short in the appropriate wire between the TPMS control unit and the initiator. 

NO - Replace the initiator (see INITIATOR REPLACEMENT ). 

14. On the initiator side, check for continuity between all four initiator 3P connector terminals No. 1 and 

No. 3 individually. 

Fig. 25: Checking Continuity Between Initiator 3P Connector Terminals No. 1 And No. 3 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

Tire location Connector A (14P) Connector B (20P)

Right-front

RF LF PWR./9

RF LF GND/14

Left-front

LF LF PWR./8

LF LF GND/13

Right-rear

RR LF PWR./11

RR LF GND/16

Left-rear

LR LF PWR./10

LR LF GND/15

 

2007 Acura RL 

2005-08 SUSPENSION TPMS (Tire Pressure Monitoring System) - RL

  

me 

 

Friday, June 05, 2009 3:22:24 PM

Page 32 

© 2005 Mitchell Repair Information Company, LLC.