DTC Troubleshooting: P0970 (29-3) (A/T)

DTC Troubleshooting: P0970 (29-3)

DTC P0970:

Problem in A/T Clutch Pressure Control Solenoid Valve C Circuit

NOTE:

Record all freeze data and review General Troubleshooting Information before you troubleshoot.
This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.

1.	Clear the DTC in CLEAR MENU with the Honda PGM Tester or HDS.

2.	Check that DTC P0970 recurs. Is DTC P0970 indicated? YES - Go to 6. NO - Go to 3.

3.	Select P CTRL SOL CONTROL in MISC. TEST MENU, then select P. CONTROL SOL C in P CTRL SOL CTRL MENU with the Honda PGM Tester or HDS.

4.	Drive the A/T clutch pressure control solenoid valve C with 1.0 A in SOL C CONTROL menu.

5.	Check the OBD STATUS in DTCs MENU for a pass/fail test of code P0970. Did the result fail? YES - Go to 6. NO - Intermittent failure, the system is OK at this time. If the tester indicates NOT COMPLETE, return to step 3 and recheck.n

6.	Turn the ignition switch OFF.

7.	Disconnect the A/T clutch pressure control solenoid valve C connector.

8.	Measure A/T clutch pressure control solenoid valve C resistance at the solenoid connector. Is there 3-10 W? YES - Go to 9. NO - Replace the A/T clutch pressure control solenoid valve C. After replacing the solenoid valve, go to 12, and check that the repair has been completed.

Check for continuity between the No. 2 terminal of the A/T clutch pressure control solenoid valve C connector and body ground.

Is there continuity?

YES - Go to 10.

NO - Repair open in the wire between the A/T clutch pressure control solenoid valve C and ground (G101), or repair poor ground (G101).n

10.	Turn the ignition switch ON (II).

11.

Measure the voltage between terminals of the A/T clutch pressure control solenoid valve C connector.

Is there about 11 V as the ignition switch is turned to the ON (II) position?

YES - Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.n

NO - Repair open or short in the wire between PCM connector terminal C7 and A/T clutch pressure control solenoid valve C.

12.	Clear the DTC in CLEAR MENU with the Honda PGM Tester or HDS.

13.	Test-drive the vehicle for several minutes under the same conditions as those indicated by the freeze data.

14.	Check the OBD STATUS in DTCs MENU for a pass/fail test of code P0970. Did the result pass? YES - The problem has been corrected.n NO - Return to step 1 and recheck.n