Acura RL. Manual - part 845

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

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. 

15. Turn the ignition switch ON (II).  

16. Measure the voltage between the appropriate terminal in TPMS control unit connector B (20P) and 

body ground individually. 

Fig. 26: Measuring Voltage Between Appropriate Terminal In TPMS Control Unit Connector B 
(20P) And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there battery voltage?  

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

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. 

DTC 51,53,55,57: TIRE PRESSURE SENSOR REGISTRATION ERROR 

1. Check the DTC indicated to the tire location to make sure the wheel is a TPMS type with the tire 

pressure sensor. 

DTC TIRE LOCATION CHART 

NOTE:

These DTCs will only set during initialization with the HDS.

DTC Tire location

51

Right-front

53

Left-front

55

Right-rear

57

Left-rear

 

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. 

Is a TPMS type wheel with a tire pressure sensor mounted on the vehicle?  

YES - Go to step 7. 

NO - Go to step 2. 

2. Install a known-good TPMS wheel.  

3. To memorize the sensor ID, drive the vehicle above 15 mph (24 km/h) for 40 seconds, or memorize 

the ID with the HDS (see MEMORIZE THE ID WITH THE HDS ).  

4. Turn the ignition switch OFF.  

5. Turn the ignition switch ON (II).  

6. With the HDS, check the indicated tire for the normal sensor signal. 

DTC TIRE LOCATION CHART 

Is NORMAL indicated within one full turn of the tire?  

YES - The system is OK at this time. Clear the DTC with the HDS. 

NO - Go to step 12. 

7. Turn the ignition switch OFF.  

8. Install a wheel with a known-good tire pressure sensor on the vehicle.  

9. To memorize the sensor ID, drive the vehicle above 15 mph (24 km/h) for 40 seconds, or memorize 

the ID with the HDS (see MEMORIZE THE ID WITH THE HDS ).  

10. Turn the ignition switch OFF.  

11. Turn the ignition switch ON (II).  

12. With the HDS, check the indicated tire for a normal pressure sensor signal. 

DTC TIRE LOCATION CHART 

NOTE:

If the HDS screen shows UNDEFINED for sensor status, turn the 
ignition switch OFF, rotate the tire 1/4 turn, then turn the ignition switch 
ON (II), and try again. If UNDEFINED is still shown, repeat the rotating 
procedure until NORMAL is shown.

DTC Tire location

51

Right-front

53

Left-front

55

Right-rear

57

Left-rear

NOTE:

If the HDS screen shows UNDEFINED for sensor status, turn the 
ignition switch OFF, rotate the tire 1/4 turn, then turn the ignition switch 
ON (II), and try again. If UNDEFINED is still shown, repeat the rotating 
procedure until NORMAL is shown.

DTC Tire location

 

2007 Acura RL 

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

  

me 

 

Friday, June 05, 2009 3:22:24 PM

Page 34 

© 2005 Mitchell Repair Information Company, LLC. 

Is NORMAL indicated within one full turn of the tire?  

YES - Replace the tire pressure sensor on the client's wheel (see TIRE PRESSURE SENSOR 
REPLACEMENT ). 

NO - Go to step 13. 

13. Turn the ignition switch OFF.  

14. Disconnect the appropriate initiator 3P connector. 

DTC INITIATOR LOCATION CHART 

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

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

appropriate initiator 3P connector terminal No. 1 (see CONTINUITY CHART). 

CONTINUITY CHART 

51

Right-front

53

Left-front

55

Right-rear

57

Left-rear

DTC Initiator location

51

Right-front

53

Left-front

55

Right-rear

57

Left-rear

DTC TPMS control unit terminal Initiator name/ terminal No.

51

No. 9

RIGHT-FRONT/1

53

No. 8

LEFT-FRONT/1

55

No. 11

RIGHT-REAR/1

57

No. 10

LEFT-REAR/1

 

2007 Acura RL 

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

  

me 

 

Friday, June 05, 2009 3:22:24 PM

Page 35 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 27: Checking Continuity Between Appropriate Terminal In TPMS Control Unit Connector 
A (14P) And Appropriate Initiator 3P Connector Terminal No. 1 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 17. 

NO - Repair open in the wire between the TPMS control unit and the appropriate initiator. 

17. Check for continuity between the appropriate terminal in TPMS control unit connector B (20P) and 

appropriate initiator 3P connector terminal No. 3 (see CONTINUITY CHART). 

CONTINUITY CHART 

DTC TPMS control unit terminal Initiator name/ terminal No.

51

No. 14

RIGHT-FRONT/3

53

No. 13

LEFT-FRONT/3

55

No. 16

RIGHT-REAR/3

57

No. 15

LEFT-REAR/3

 

2007 Acura RL 

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

  

me 

 

Friday, June 05, 2009 3:22:24 PM

Page 36 

© 2005 Mitchell Repair Information Company, LLC.