Acura TSX / Honda Accord CL. Manual - part 616

Fig. 93: Checking For Continuity Between ELD 3P Connector Terminal No. 2 & Body 
Ground 

13. Replace the under-hood fuse/relay box (see REMOVAL AND INSTALLATION ).  

14. Turn the ignition switch ON (II).  

15. Reset the ECM/PCM with the HDS.  

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE PGM-FI System - TSX

  

 

16. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).  

17. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. 

Are any Temporary DTCs or DTCs indicated? 

YES: Go to step 18.  

NO: Troubleshooting is complete.  

18. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM (see 

HOW TO SUBSTITUTE THE ECM/PCM ).  

19. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. 

Are any Temporary DTCs or DTCs indicated? 

YES: If DTC P1298 is indicated, check for poor connections or loose terminals at the ELD 
and the ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, 
go to the indicated DTC troubleshooting.  

NO: If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was 
substituted, replace the original ECM/PCM (see HOW TO REMOVE THE ECM/PCM 
FOR TESTING ).  

DTC P2227: BARO SENSOR RANGE/PERFORMANCE PROBLEM 

1. Turn the ignition switch ON (II), and wait 2 seconds.  

2. Check the BARO SENSOR in the DATA LIST with the HDS. 

Is about 101kPa (760 mm Hg, 29.9 in. Hg), or about 2.9 V at sea level indicated? 

YES: Go to step 3.  

NO: Update the ECM/PCM if it does not have the latest software, or substitute a known-
good ECM/PCM, then recheck (see HOW TO SUBSTITUTE THE ECM/PCM ). If the 
symptom/indication goes away with a known-good ECM/PCM, replace the original 
ECM/PCM.  

3. Clear the DTC with the HDS.  

4. Start the engine. Hold the engine speed at 3,000 RPM with no load (in Park or neutral) until the radiator 

fan comes on, then let it idle.  

5. Test-drive under the following conditions, then connect the HDS: 

z

Engine coolant temperature more than 158°F (70°C)  

z

A/T in D position (M/T in 4th gear)  

z

Throttle position between 12 degrees and 20 degrees for 2 seconds  

6. Monitor the OBD STATUS for DTC P2227 in the DTCs MENU with the HDS. 

Does the screen indicate FAILED? 

YES: Go to step 7.  

NO: If the screen indicates PASSED, intermittent failure, system is OK at this time. If the 
screen indicates NOT COMPLETED, go to step 4 and recheck.  

NOTE:

If DTC P0107, P0108, P1128 and/or P1129 are stored at the same time as DTC 
P2227 troubleshoot those DTCs first, then recheck for DTC P2227.

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE PGM-FI System - TSX

  

 

7. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM (see 

HOW TO SUBSTITUTE THE ECM/PCM ).  

8. Reset the ECM/PCM with the HDS.  

9. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).  

10. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. 

Are any Temporary DTCs or DTCs indicated? 

YES: If DTC P2227 is indicated, check for poor connections or loose terminals at the 
ECM/PCM then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to the 
indicated DTC troubleshooting.  

NO: If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was 
substituted, replace the original ECM/PCM (see HOW TO REMOVE THE ECM/PCM 
FOR TESTING ).  

DTC P2228: BARO SENSOR CIRCUIT LOW VOLTAGE 

1. Turn the ignition switch ON (II).  

2. Check the BARO SENSOR in the DATA LIST with the HDS. 

Is about 53 kPa (397 mm Hg, 15.6 in. Hg), 1.58 V, or less indicated? 

YES: Go to step 3.  

NO: Intermittent failure, system is OK at this time.  

3. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM (see 

HOW TO SUBSTITUTE THE ECM/PCM ).  

4. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. 

Are any Temporary DTCs or DTCs indicated? 

YES: If DTC P2228 is indicated, check for poor connections or loose terminals at the 
ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to 
the indicated DTC troubleshooting.  

NO: If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was 
substituted, replace the original ECM/PCM (see HOW TO REMOVE THE ECM/PCM 
FOR TESTING ).  

DTC P2229: BARO SENSOR CIRCUIT HIGH VOLTAGE 

1. Turn the ignition switch ON (II).  

2. Check the BARO SENSOR in the DATA LIST with the HDS. 

Is about 160 kPa (1200 mm Hg, 47.2 in. Hg), 4.5 V, or higher indicated? 

YES: Go to step 3.  

NO: Intermittent failure, system is OK at this time.  

3. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM (see 

HOW TO SUBSTITUTE THE ECM/PCM ).  

4. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE PGM-FI System - TSX

  

 

Are any Temporary DTCs or DTCs indicated? 

YES: If DTC P2229 is indicated, check for poor connections or loose terminals at the 
ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to 
the indicated DTC troubleshooting.  

NO: If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was 
substituted, replace the original ECM/PCM (see HOW TO REMOVE THE ECM/PCM 
FOR TESTING ).  

DTC U0073: FCAN MALFUNCTION (BUS-OFF); DTC U0155: FCAN MALFUNCTION (GAUGE 
CONTROL MODULE - ECM/PCM) 

1. Turn the ignition switch ON (II).  

2. Clear the DTC with the HDS.  

3. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. 

Is DTC U0073 and/or U0155 indicated? 

YES: Go to step 4.  

NO: Intermittent failure, system is OK at this time. Check for poor connections or loose 
terminals at the gauge control module, VSA control unit, the navigation unit and the 
ECM/PCM.  

4. Check for DTCs in the DTCs MENU in the Body Electrical system with the HDS. 

Is DTC B1168, B1169 and/or B1178 indicated? 

YES: Go to step 5.  

NO: Perform the gauge control module input test (see GAUGE CONTROL MODULE 
INPUT TEST ).  

5. Turn the ignition switch OFF.  

6. Remove the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).  

7. Disconnect the gauge control module 30P connector.  

8. Disconnect the VSA control unit 47P connector.  

9. If equipped with the navigation system, disconnect the navigation unit 20P connector.  

10. Jump the SCS line with the HDS.  

11. Disconnect ECM/PCM connector E (31P).  

12. Check for continuity between ECM/PCM connector terminals E11, E24 and body ground individually. 

Is there continuity? 

YES: Repair short in the wire between the gauge control module, VSA control unit, the 
navigation unit, and the ECM/PCM E11 (E24 - CANL line), then go to step 17 .  

NO: Go to step 13.  

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE PGM-FI System - TSX