2002 Honda Odyssey d drive light blinks

Tiny
KEVING2033
  • MEMBER
  • 2002 HONDA ODYSSEY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 140,000 MILES
I just brought this van. It drives nice and shifts good but I have a code po845. And I know the history of odysseys about their transmissions.I just found out. But is there any chance that it could be fixed rather then replacing the transmision. Im handy and have honda exp. Please let me know. Thanks for your time
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Wednesday, February 24th, 2010 AT 10:09 AM

3 Replies

Tiny
KHLOW2008
  • EXPERT
Hi keving2033,

Problem is most likely electrical and does not require the trans to be replaced. Here are the diagnostic procedures.

DTC P0845: PROBLEM IN 3RD CLUTCH TRANSMISSION FLUID PRESSURE SWITCH CIRCUIT

1. Turn the ignition switch ON (II).

2. Measure the voltage between PCM connector terminals D13 and B20 or B22.
Is there battery voltage?

YES - Go to step 7.
NO - Go to step 3.

3. Turn the ignition switch OFF.

4. Disconnect PCM connector D (16P).

5. Disconnect the 3rd clutch transmission fluid pressure switch connector.

6. Check for continuity between PCM connector terminal D13 and body ground.

Is there continuity?
YES - Repair short to ground in the wire between PCM connector terminal D13 and the 3rd clutch transmission fluid pressure switch.
NO - Disconnect the 3rd clutch transmission fluid pressure switch connector, and go to step 15.

7. Raise the front of the vehicle, and make sure it is securely supported.

8. Set the parking brake, and block the rear wheels securely.

9. Start the engine, then shift to D3 position and let the wheels spin in 3rd gear for more than 5 seconds.

10. Measure the voltage between PCM connector terminals D13 and B20 or B22.
Is there about 0 V?
YES - Check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.
NO - Go to step 11.

11. Turn the ignition switch OFF.

12. Disconnect the 3rd clutch transmission fluid pressure switch connector.

13. Turn the ignition switch ON (II).

14. Measure the voltage between the 3rd clutch transmission fluid pressure switch connector
terminal and body ground.

Is there battery voltage?

YES - Go to step 15.
NO - Repair open in the wire between the 3rd transmission fluid clutch pressure switch and the PCM.

15. Measure the resistance between the 3rd clutch transmission fluid pressure switch connector
terminal and body ground.

Is the resistance 10 M © and more?

YES - Check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and recheck.
NO - Replace the 3rd clutch transmission fluid pressure switch.
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Sunday, February 28th, 2010 AT 8:24 AM
Tiny
TEMITOPE
  • MEMBER
Enter reply.I have the same problem
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Tuesday, November 29th, 2016 AT 1:18 AM
Tiny
TEMITOPE
  • MEMBER
Enter reply.I am experiencing the same gear light blinking problem
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Tuesday, November 29th, 2016 AT 7:17 AM

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