Question about 2007 Mitsubishi L-200 2.5
Hi guys. Took my triton for a detail to sell, and when i picked it up the speedo wasn't working. Checked the sensor and it seems to be fine and the connections in the back of the cluster are all plugged in properly. Is there anywhere else to check. Have not yet tested the signal at the cluster but intend to do that as soon as i get a chance.
Check the signal at the sensor with a multimeter. Most have three wires, one is a 12volt feed, one is a ground and the third is the signal wire. This wire is usually only 5volts and is grounded and ungrounded by the sensor in precise timing intervals as the sensor rotates. This means that to check its operation, make sure it has the 12volt feed and the ground, then, Jack up one rear wheel and chock the rest. Select neutral and release the parking brake.
Turn the ignition on BUT DONT START THE ENGINE. Reconnect ALL the wires to the sensor and then backprobe the signal wire you found earlier with a multimeter. Once you have the wire probed, slowly rotate the wheel by hand. The meter should show the 5 volt drop to nothing, then back to 5volts, then nothing, then 5volts and on and on as long as you rotate the wheel. If this 5volt is not present, check the instrument cluster as this 5volts comes from the speedo head. If the 12 volts is not present, check all fuses WITH A TEST PROBE - looking at the fuse is not enough and check the wiring to the sensor. If the ground is missing, check the earth point on the chassis under the rear of the cab and under the bonnet and repair and issues found.If all these tests show good and you have the alternating 5volt voltage, check the same signal wire at the cluster, if it still alternates when you turn the wheel by hand, repair the speedo head. If the 5volt signal feed from the speedo head is missing, check the wiring to the speedo head, if the signal is not present at the speedo head, repair the speedo head.
Posted on May 20, 2014
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Posted on Jan 02, 2017
exact same problem happened with my lancer i took it to an auto instrument shop and it cost me $330 to fix and hasnt stopped working since.
Posted on Oct 19, 2009
You have short circuit between battery positive terminal and chassis.Follow a cable from battery to an alternator.If O.K. remove alternator and check all diods- 6 pse.Also check cable from battery to a starter motor.
Posted on Dec 01, 2009
Testimonial: "Thank you very much for your help. The problem has been fixed."
Remove the speedometer head unit, and check the soldered joints on the back. It's a common problem with these and some Chrysler products. "Randomly" is when the crack closes and makes contact, like if you hit the top of the dash and it starts working again. The speedometer head cluster.
Posted on Feb 24, 2010
Testimonial: "Great that explains it well Thanks"
Petrol? put a pressure gauge on the outlet and spin the motor over, I guess it should be 4-5psi. The ethanol in fuel has a habit of eating the internals of fuel pumps
Posted on Apr 24, 2010
Testimonial: "thanks very helpful"
what ever your last reading was on your odometer thats where it will start to work from. so it will be like you got a new one from like autozone. i hope thats what you wanted to know
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Posted on Jul 21, 2011
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