Nige
Senior Member
Does the parking brake warning light go off when you press the switch.?Engine Starts, but can't move machine, because parking brake is on.
Does the parking brake warning light go off when you press the switch.?Engine Starts, but can't move machine, because parking brake is on.
No the warning light stays onDoes the parking brake warning light go off when you press the switch.?
On the face of it - no.Could it be...
- Seat switch,
- Armrest Switch
- Door switch.
- Joy Stick-
- Faulty Parking Brake Switch
If you still have the 636-8 Code then on the face of it the sensor/wiring relating to the cam sensor is still a problem. See my earlier somment regarding the engine wiring harness. Anecdotal information here on HEF is that failure of that particular harness is not an unkown phenomenon.Still throwing 636-8 Engine Position Sensor Code. Swapped crank sensor and cam sensor and Engine would not turn over and parking brake still wont release. Switched sensors back and Engine will start, but parking brake still won't release.
If you still have the 636-8 Code then on the face of it the sensor/wiring relating to the cam sensor is still a problem. See my earlier somment regarding the engine wiring harness. Anecdotal information here on HEF is that failure of that particular harness is not an unkown phenomenon.
Reading your post #22 above with the timeline of Codes, action taken, etc, I've cherry-picked your text and my comments are as follows: -
April 9th - "Code 723-2 - Engine Speed Sensor #2."
April 25th - "Took machine back to shop to power wash and clean radiator - Switched Cam and crank sensors. Hooked up new attachment and then it started throwing code 723-8." 723-2 (Data Erratic, Intermittent, or Incorrect ) and 723-8 (Abnormal Frequency, Pulse Width, or Period) are pretty much the same thing. The ECM is receiving "inconsistent data" from the sensor in other words. The troubleshooting procedure for both is the same one I posted earlier. Interesting to note that the Code stayed on the same sensor despite the fact the sensors were physically switched. This gives the impression that the sensors might not be the issue.
Getting water into the sensor connectors from the pressure washing could be related to this.
April 30th - "Now Throwing 636-8 Engine Position Sensor Code. - Also now showing "Fault" on RPM Gauge." Confirmed that the RPM signal is taken from the camshaft position sensor. A dodgy signal will cause no RPM reading on the display.
May 3 - "Engine Starts, but parking brake won't release. Still throwing 636-8 Engine Position Sensor Code. Swapped crank sensor and cam sensor and Engine would not turn over and parking brake still wont release. Switched sensors back and Engine will start, but parking brake still won't release." So by my count you have switched sensors 3 times. Once on Arpil 25 and twice on May 3. Is that correct.? If it is then it appears as though they are still in the "wrong" holes from where they were before all this kicked off prior to April 9.
My suggestions: -
1. Unplug both main ECM wiring connectors J1 & J2 plus both speed sensors and test the following wires on the engine wiring harness for continuity between the engine ECM and the 3-pin connectors on the sensors. Y733 Purple, 993 Yellow, & 997 Orange (crankshaft sensor) and 709 Orange, J864 Grey, & F732 Pink (camshaft sensor). Testing the resistance using a multimeter is NOT recommended. Instead make a temporary connection from one end of a particular wire to machine frame ground and apply battery+ voltage to the other end via a 5A test light. The reason for this is simple. A wire that is damaged internally and "hanging on by a thread" without showing any external damage may pass a DMM resistance test but it won't pass 5A.
2. Give the male/female connectors of the ECM and both sensors a good dose of aerosol contact cleaner and dry with compressed air before reassembling.
I remember that one, but the symptoms were different AND once the owner updated to the same Advanced LCD panel that you already have- it had Codes for joystick/speed sensors (can't remember which offhand) - You don't.Any suggestions, on why the parking brake will not release. I had read on a another which had a similar issue on a 299, and it is seemed like replacing two sets of wire harnesses from the right side speed sensor, may have solved the issue.
For these sensor plugs try ballengermotorsports.com Probably have to match up by number of terminals (2) brand, (denso) and images.
If you take photos place a ruler alongside the connector to give an idea of scale.Thanks for the information, I'll call them up tomorrow to see if they can match the plug.
Agreed. See Post #15 on Page 1. Failure of the engine harness is not an unknown phenomenon.For the sensor plugs consider a complete engine harness. Last one I changed was something like less than $150 and may fix your problem any way with a new harness. This only changes half the connector though
Approx Diameter Width - 5/64" or 1.42mmPictures of pin for sensor plug (Stamped E 14) Approx 5/8" Long
Did you consider this suggestion.? With reference to the "other half" of the connector that's on the sensor anyway. So if you replace a sensor you get that half.For the sensor plugs consider a complete engine harness. Last one I changed was something like less than $150 and may fix your problem any way with a new harness. This only changes half the connector though
Nigel,Did you consider this suggestion.? With reference to the "other half" of the connector that's on the sensor anyway. So if you replace a sensor you get that half.