Acura RL. Manual - part 846

Fig. 28: Checking Continuity Between Appropriate Terminal In TPMS Control Unit Connector 
B (20P) And Appropriate Initiator 3P Connector Terminal No. 3 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 18. 

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

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

terminal and appropriate initiator 3P connector terminal No. 2 (see CONTINUITY CHART). 

CONTINUITY CHART 

DTC TPMS control unit terminal No. Initiator name/ terminal No.

51

No. 1

RIGHT-FRONT/2

53

No. 3

LEFT-FRONT/2

55

No. 2

RIGHT-REAR/2

57

No. 4

LEFT-REAR/2

 

2007 Acura RL 

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

  

me 

 

Friday, June 05, 2009 3:22:24 PM

Page 37 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 29: Checking Continuity Between Appropriate Terminal In TPMS Control Unit Connector 
B (20P) Terminal And Appropriate Initiator 3P Connector Terminal No. 2 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 19. 

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

19. Check for continuity between body ground and the appropriate TPMS control unit connector B (20P) 

terminal (see CONTINUITY CHART). 

CONTINUITY CHART 

Fig. 30: Checking Continuity Between Body Ground And Appropriate TPMS Control Unit 
Connector B (20P) Terminal 
Courtesy of AMERICAN HONDA MOTOR CO., INC.

DTC TPMS control unit terminal

51

No. 1

53

No. 3

55

No. 2

57

No. 4

 

2007 Acura RL 

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

  

me 

 

Friday, June 05, 2009 3:22:24 PM

Page 38 

© 2005 Mitchell Repair Information Company, LLC. 

Is there continuity?  

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

NO - Go to step 20. 

20. Measure voltage between body ground and the appropriate TPMS control unit connector B (20P) 

terminal (see CONTINUITY CHART). 

VOLTAGE TERMINAL CHART 

Fig. 31: Measuring Voltage Between Body Ground And Appropriate TPMS Control Unit 
Connector B (20P) Terminal 
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 appropriate initiator. 

NO - Repair the appropriate initiator (see INITIATOR REPLACEMENT ). 

DTC 81: TPMS CONTROL UNIT FAILURE (RAM/ ROM/ADC/EEPROM/ALU) CHECK 

1. Turn the ignition switch ON (II).  

2. Clear the DTC with the HDS.  

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

4. Check for DTCs with the HDS. 

Is DTC 81 indicated?  

DTC TPMS control unit terminal

51

No. 1

53

No. 3

55

No. 2

57

No. 4

NOTE:

Low battery voltage can cause this DTC. Make sure the battery is fully 
charged and in good condition.

 

2007 Acura RL 

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

  

me 

 

Friday, June 05, 2009 3:22:24 PM

Page 39 

© 2005 Mitchell Repair Information Company, LLC. 

YES - Replace the TPMS control unit (see TPMS INDICATOR OR TIRE(S) INDICATOR(S) 
DOES NOT GO OFF, AND NO DTCS ARE STORED ). 

NO - The system is OK at this time. 

DTC 83: NO VSP SIGNAL 

1. Turn the ignition switch ON (II).  

2. Clear the DTC with the HDS.  

3. Test-drive the vehicle.  

4. Check for DTCs with the HDS. 

Is DTC 83 indicated?  

YES - Go to step 5. 

NO - The system is OK at this time. 

5. Check for DTCs with the HDS. 

Is DTC 85 indicated?  

YES - Go to DTC 85 TROUBLESHOOTING . 

NO - Go to step 6. 

6. Test-drive the vehicle, and check the VEHICLE SPEED in the TPMS DATA LIST with the HDS. 

Is the vehicle speed indicated?  

YES - 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. 

NO - Go to step 7. 

7. Check the speedometer. 

Does the speedometer register speed?  

YES - Replace the TPMS control unit (see TPMS INDICATOR OR TIRE(S) INDICATOR(S) 
DOES NOT GO OFF, AND NO DTCS ARE STORED ). 

NO - Substitute a known-good PCM (see SUBSTITUTING THE PCM ), and retest. If no codes are 
shown, replace the original PCM. 

NOTE:

Check the fuel and emission systems DTCs with the HDS, and troubleshoot 
the PCM and F-CAN communication errors first (see GENERAL 
TROUBLESHOOTING INFORMATION ).

 

2007 Acura RL 

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

  

me 

 

Friday, June 05, 2009 3:22:24 PM

Page 40 

© 2005 Mitchell Repair Information Company, LLC.