Acura RL. Instruction — page 237

Fig. 90: Checking Continuity Between ATF Temperature Sensor Connector Terminal No. 2 And
Body Ground

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES — Repair short in the wire between PCM connector terminal C3 and ATF temperature sensor
connector terminal No. 2, then go to step 16.

NO — Go to step 11.

11. Reconnect all connectors.

12. Update the A/T software in the PCM if it does not have the latest software (see UPDATING THE

PCM ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ).

13. Turn the ignition switch to ON (II), and wait for 20 seconds, then start the engine in P. Run the engine for

at least 10 seconds.

14. Check for DTC(s) in the DTCs/Freeze Data in A/T Mode Menu with the HDS.

Is DTC P0712 indicated?

YES — If the PCM was updated, substitute a known-good PCM (see SUBSTITUTING THE PCM ),
then recheck. If the PCM was substituted, go to step 1.

NO — Go to step 15.

15. Monitor the OBD STATUS for P0712 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the HDS indicate PASSED?

YES — If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the
original PCM (see PCM REPLACEMENT ). If any other DTCs were indicated on step 14, go to the
INDICATED DTC’S TROUBLESHOOTING.

NO — Check for poor connections and loose terminals at the ATF temperature sensor and the PCM. If the
PCM was updated, substitute a known-good PCM (see SUBSTITUTING THE PCM ), then recheck. If

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the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, return to step 13 and
recheck.

16. Reconnect all connectors.

17. Clear the DTC with the HDS.

18. Turn the ignition switch to ON (II), and wait for 20 seconds, then start the engine in P. Run the engine for

at least 10 seconds.

19. Check for DTC(s) in the DTCs/Freeze Data in A/T Mode Menu with the HDS.

Is DTC P0712 indicated?

YES — Check for poor connections and loose terminals at the ATF temperature sensor and the PCM, then
go to step 1.

NO — Go to step 20.

20. Monitor the OBD STATUS for P0712 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the HDS indicate PASSED?

YES — Troubleshooting is complete. If any other DTCs were indicated on step 19, go to the INDICATED
DTC’S TROUBLESHOOTING
.

NO — Check for poor connections and loose terminals at the ATF temperature sensor and the PCM, then
go to step 1. If the HDS indicates NOT COMPLETED, return to step

18

and recheck.

DTC P0713: Open in ATF Temperature Sensor Circuit

1. Turn the ignition switch to ON (II), and wait for 20 seconds.

2. Check the ATF temperature sensor voltage with the HDS in the A/T data list.

Does ATF TEMP SENSOR voltage exceed 4.93 V?

YES — Go to step 3.

NO — Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at
the ATF temperature sensor and the PCM.

3. Turn the ignition switch to LOCK (0).

NOTE:

Before you troubleshoot, record all freeze data and any on-board
snapshot, and review General Troubleshooting Information (see GENERAL
TROUBLESHOOTING INFORMATION ).

This code is caused by an electrical circuit problem and cannot be caused
by a mechanical problem in the transmission.

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4. Disconnect the ATF temperature sensor connector at the transmission end cover.

5. Turn the ignition switch to ON (II).

6. Measure the voltage between ATF temperature sensor connector terminal No. 2 and body ground.

Fig. 91: Measuring Voltage Between ATF Temperature Sensor Connector Terminal No. 2 And
Body Ground

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there about 5 V?

YES — Go to step 7.

NO — Go to step 8.

7. Measure the voltage between ATF temperature sensor connector terminals No. 1 and No. 2.

Fig. 92: Measuring Voltage Between ATF Temperature Sensor Connector Terminals No. 1 And No.
2

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there about 5 V?

YES — Replace the ATF temperature sensor (see ATF TEMPERATURE SENSOR
REPLACEMENT
), then go to step 14.

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NO — Repair open in the wire between PCM connector terminal C12 and the ATF temperature sensor
connector, then go to step 14.

8. Measure the voltage between PCM connector terminal C3 and body ground.

Fig. 93: Measuring Voltage Between PCM Connector Terminal C3 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there about 5 V?

YES — Repair open in the wire between PCM connector terminal C3 and the ATF temperature sensor
connector, then go to step 14.

NO — Go to step 9.

9. Connect the ATF temperature sensor connector.

10. Update the A/T software in the PCM if it does not have the latest software (see UPDATING THE

PCM ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ).

11. Turn the ignition switch to ON (II), and wait for 20 seconds, then start the engine in P. Run the engine for

at least 10 seconds.

12. Check for DTC(s) in the DTCs/Freeze Data in A/T Mode Menu with the HDS.

Is DTC P0713 indicated?

YES — If the PCM was updated, substitute a known-good PCM (see SUBSTITUTING THE PCM ),
then recheck. If the PCM was substituted, go to step 1.

NO — Go to step 13.

13. Monitor the OBD STATUS for P0713 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the HDS indicate PASSED?

YES — If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the
original PCM (see PCM REPLACEMENT ). If any other DTCs were indicated on step 12, go to the

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission — RL

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© 2005 Mitchell Repair Information Company, LLC.

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