Hello,
I was driving my 2010 Honda Fit Sport CVT with 55K miles when the check engine light came on. I drove the car home and did not notice anything wrong. The car has two P0847 codes. Help.
Your assistance is greatly appreciated,
myink
Oil pressure switch. I believe it’s a one for 3rd clutch. I bet it is disconnected, leaking, etc. Raise the front left of the car, take a wheel off, peek behind plastic that covers the end of a transmission. Look for damage, leaks, disconnected wiring. Check for ATF level, too. Post here what you find, … we will take it from there.
… btw, your transmission is 5 speed automatic.
F.S.
I checked the 3rd clutch switch. It was clean (no leaks) and properly connected to the wiring. I changed the transmission fluid two years ago and it was still full.
Is the next step to change the switch?
myink
Well, … turn the ignition to LOCK (0) … disconnect the wiring from the pressure switch, … turn the ignition switch to ON (II) … measure voltage between connector terminal and body ground. Is there a reading of about 5 V? If yes, … replace the switch. If no, wiring needs to be checked for continuity between power control module (PCM) connector terminal and pressure switch connector. If no continuity, … wire is broken, blue/white wire is broken and needs to be bypassed by a new wire. If yes, … it’s a job for a dealer. PCM problem, … or software problem. … or ?
F.S.
I performed the test and measured 5V. I will get a replacement pressure switch to install.
Great! This will solve your problem.
Btw, … get a replacement washer, … and be quick as you pull faulty switch and replacing it with a new one. ATF will be draining, … but if you do it quick it should be no more than a cup. Also, if you never changed ATF, this may be time? You need about three (3) litres of Honda ATF.
Best,
F.S.