Pgm-Fi System: Removal & Installation Acura RDX I facelift

A/F Sensor Replacement

Special Tools Required

O2 Sensor Wrench Snap-on S6154, commercially available

Scheme 283

1. Disconnect the A/F sensor 4P connector (A), then remove the A/F sensor (B).
2. Install the parts in the reverse order of removal.

Secondary HO2S Replacement

Special Tools Required

O2 Sensor Wrench Snap-on YA8875 or O2 Sensor Wrench, E19 SP Tools 93750 or equivalent, commercially available

Scheme 284

Scheme 285

Scheme 286

1. Raise the vehicle on a lift.
2. Remove the WU-TWC bracket (A). Without SH-AWD With SH-AWD
3. Disconnect the secondary HO2S 4P connector (A), then remove the secondary HO2S (B).
4. Install the parts in the reverse order of removal.

Scheme 287

1. Remove the charge air cooler (see «REMOVAL»(ref-513843-S00579136532012111600000) ).
2. Remove the air bypass outlet pipe (see «CHARGE AIR COOLER REMOVAL AND INSTALLATION»(ref-513843-S10333582482012111600000) ).
3. Disconnect the CMP sensor B connector (A).
4. Remove CMP sensor B (B).
5. Install the parts in the reverse order of removal with a new O-ring (C).

Scheme 288

1. Raise the vehicle on a lift.
2. Disconnect the CKP sensor connector (A).
3. Remove the CKP sensor (B).
4. Install the parts in the reverse order of removal with a new O-ring (C).
5. Do the CKP pattern clear/CKP pattern learn procedure (see «HDS CLEAR COMMAND»(ref-513832-S18284190592012111600000) ).

Scheme 289

1. Disconnect the MAP sensor connector (A).
2. Remove the MAP sensor (B).
3. Install the parts in the reverse order of removal with a new O-ring (C).

Scheme 290

1. Disconnect the MAF sensor/IAT sensor 1 connector (A).
2. Remove the screws (B).
3. Remove MAF sensor/IAT sensor 1 (C).
4. Install the parts in the reverse order of removal with a new gasket (D).

Scheme 291

1. Remove the charge air cooler cover (see «REMOVAL»(ref-513843-S00579136532012111600000) ).
2. Disconnect the IAT sensor 2 connector (A).
3. Remove IAT sensor 2 (B).
4. Install the parts in the reverse order of removal with a new O-ring (C).

Scheme 292

Scheme 293

1. Drain the engine coolant (see «COOLANT CHECK»(ref-513839-S17022790932012111600000) ).
2. Remove the air cleaner (see «AIR CLEANER REMOVAL/INSTALLATION»(ref-513845-S42552347872012111600000) ).
3. Remove the charge air cooler (see «REMOVAL»(ref-513843-S00579136532012111600000) ).
4. Remove the ignition coil cover (A) and bolt (B)
5. Disconnect the ignition coil connectors (C), CMP sensor A connector (D), CMP sensor B connector (E), and the EVAP canister purge valve connector (F).
6. Remove the harness holder (G). NOTE: Be careful not to damage the ECT sensor 1 harness.
7. Disconnect the ECT sensor 1 connector (A).
8. Remove ECT sensor 1 (B).
9. Install the parts in the reverse order of removal with a new O-ring (C).
10. Refill the radiator with engine coolant (see «COOLANT CHECK»(ref-513839-S17022790932012111600000) ).

Scheme 294

1. Remove the splash shield.
2. Drain the engine coolant (see «COOLANT CHECK»(ref-513839-S17022790932012111600000) ).
3. Disconnect the ECT sensor 2 connector (A).
4. Remove ECT sensor 2 (B).
5. Install the parts in the reverse order of removal with a new O-ring (C).
6. Refill the radiator with engine coolant (see «COOLANT CHECK»(ref-513839-S17022790932012111600000) ).

Scheme 295

1. Disconnect the knock sensor connector (A).
2. Remove the knock sensor (B).
3. Install the parts in the reverse order of removal.

Scheme 296

Scheme 297

Scheme 298

Scheme 299

1. Remove the under-hood fuse/relay box (see «REMOVAL AND INSTALLATION»(ref-513868-S02949093172012111600000) ).
2. Remove the screw (A).
3. Turn the housing over, then remove the screw (A).
4. Turn the housing over again. Using two flat-tip screwdrivers, release the tabs (A), and pry up the fuse/relay box base (B) from the fuse/relay box housing (C). NOTE: Make sure the terminals (D) are not bent or damaged.
5. Remove the ELD (A).
6. Install the parts in the reverse order of removal.

PCM Replacement

Special Tools Required

1. Honda Diagnostic System (HDS) tablet tester
2. Honda Interface Module (HIM) and an iN workstation with the latest HDS software version
3. HDS pocket tester
4. GNA600 and an iN workstation with the latest HDS software version
5. MVCI unit with the latest control module (CM) update software installed
6. Any one of the above updating tools can be used.

Note. Make sure the HDS/iN workstation or the MVCI unit has the latest HDS software version.

Scheme 300

Scheme 301

Scheme 302

1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the PCM and all other vehicle systems. If it does not, go to the DLC circuit troubleshooting (see «DLC CIRCUIT TROUBLESHOOTING»(ref-513833-S41457160082012111600000) ). If the result of the DLC circuit troubleshooting is to replace the PCM, skip steps 4 and 5 , 14 through 16 , and 19 , and do the following procedures after replacing the PCM: Replace the engine oil (see «ENGINE OIL REPLACEMENT»(ref-513834-S16958081852012111600000) ) and the engine oil filter (see «ENGINE OIL FILTER REPLACEMENT»(ref-513834-S08237428492012111600000) ).
4. USA, Canada models: Select the PGM-FI system with the HDS.
5. USA, Canada models: Select the REPLACE PCM MENU, then select READ DATA, and follow the HDS screen prompts. NOTE: Doing this step copies (READS) the engine oil life data from the original PCM so you can later download (WRITES) it into a new PCM. If READ DATA indicates FAILED, continue with this procedure.
6. Turn the ignition switch to LOCK (0).
7. Jump the SCS line with the HDS.
8. Disconnect PCM connectors A, B, and C. NOTE: PCM connectors A, B, and C have symbols (A=[], B=delta, C=o) embossed on them for identification.
9. Remove the bolts (D), and remove the PCM assembly (E).
10. Remove the cover (A), and the bracket (B) from the PCM (C).
11. Install the parts in the reverse order of removal.
12. Turn the ignition switch to ON (II).
13. Manually input the VIN to the PCM with the HDS. NOTE: DTC P0630 VIN Not Programmed or Mismatch may be stored because the VIN has not been programmed into the PCM; ignore it, and continue this procedure.
14. USA, Canada models: If the READ DATA (engine oil life) failed in step 5 , go to step 17 . Otherwise, go to step 15.
15. USA, Canada models: Select the PGM-FI system with the HDS.
16. USA, Canada models: Select the REPLACE PCM MENU, then select WRITE DATA, and follow the HDS prompts. NOTE: If the WRITE DATA indicates FAILED, continue with this procedure.
17. Select IMMOBI system with the HDS.
18. Enter the immobilizer PCM code that you got from the iN, and use the PCM replacement procedure in the IMMOBI MENU of the HDS; it allows you to start the engine.
19. USA, Canada models: If the READ DATA failed in step 5 or the WRITE DATA failed in step 16 , replace the engine oil (see «ENGINE OIL REPLACEMENT»(ref-513834-S16958081852012111600000) ) and engine oil filter (see «ENGINE OIL FILTER REPLACEMENT»(ref-513834-S08237428492012111600000) ), then go to step 20.
20. Clean the throttle body (see «THROTTLE BODY TEST»(ref-513845-S25603876972012111600000) ).
21. Select PGM-FI system, and reset the PCM with the HDS.
22. Update the PCM if it does not have the latest software (see «PCM UPDATE»(ref-513833-S16680197442012111600000) ).
23. Do the PCM idle learn procedure (see «PCM IDLE LEARN PROCEDURE»(ref-513856-S30291526352012111600000) ).
24. Do the CKP pattern clear/CKP pattern learn procedure (see «HDS CLEAR COMMAND»(ref-513832-S18284190592012111600000) ).