TEST 1: Over-Drive Shift Solenoid Resistance Test
OK, this is what you signed up for, testing the Over-Drive shift solenoid inside the transmission solenoid pack to see if its good or bad.
Before you start, you'll need to disconnect the solenoid pack's 8 wire connector since you'll be testing the solenoid pack's pin #4 and pin #6 with your multimeter's red and black test leads (in Ohms mode).
Pin #4 is the one that feeds power (10 to 12 Volts) to the Over-Drive shift solenoid and Pin #6 is the one that feeds the activation signal to it.
NOTE: Don't perform the Over-Drive shift solenoid test with a hot engine/transmission or you run the riks of getting burned. Be careful, use common sense and think SAFETY.
OK, this is what you'll need to do:
- Disconnect the solenoid packs electrical connector.
- This is an on-car test, so you don't have to remove the solenoid pack to test it.
- If you have already removed the transmission solenoid pack, well thats OK since the instructions in this test tutorial still apply.
- Set your multimeter to Ohms mode.
- With the red Lead, probe the metal male terminal labeled with the number 4 in the photo above.
- With the black multimeter test lead, probe the metal male terminal labeled with the number 6.
- Your multimeter should register between 0.5 to 9 Ohms.
Let's find out what your test result means:
CASE 1: The multimeter registered the indicated Ohms. This is the correct and expected resistance test result and let's you know that the Over-Drive shift solenoid (within the solenoid pack) is OK.
Since a trouble code P0760 is lighting up the check engine light and your transmission is not shifting out of 2nd gear, the next steps are:
- Check the continuity of circuit #6 between the Transmission Control Module and the solenoid pack's connector.
- Check the physical condition of the solenoid pack's connector and the round metal terminals inside of it for damage.
The above steps are beyond the scope of this article, but at least now you know what direction your troubleshooting needs to take.
CASE 2: The multimeter DID NOT register the indicated Ohms. Double check that you're testing the correct metal male terminals on the solenoid pack and retest.
If you still don't see the indicated resistance in Ohms, then the Over-Drive shift solenoid is bad. You'll need to replace the solenoid pack Assembly to resolve the problem.
Where To Buy The Chrysler Solenoid Pack
Your local auto parts store (like AutoZone, O'reilly, Pepboys) will carry the Chrysler solenoid pack and will be more than happy to sell you one at a cost of US$150 to $200, which is quite expensive.
Another alternative you may want to explore, is buying it online and saving a few bucks. Below you'll find two links (to the same place) so that you can shop and compare and see what option is best for you!