22 - tps sensor signal voltage low
26 - quad-driver module (computer) circuit #1 fault
27 - quad-driver module (computer) 2nd gear circuit
28 - quad-driver module (computer) circuit #2 fault
29 - quad driver module (computer) 4th gear circuit
31 - cam position sensor fault
You can find the code definitions here:
You're making a very common mistake. Diagnostic fault codes never say to replace parts or that they're defective. They only indicate the circuits or systems that need further diagnosis. In the case of the quad drivers, there could be a problem with a computer module, and multiple codes leans more that way, but there could also be wiring problems. Look for corroded terminals in connectors, a wiring harness that fell down onto hot exhaust parts, or a harness that is rubbing on a sharp metal bracket.
Another cause of multiple codes is simply disconnecting a plug while the ignition switch is turned on. That can occur when moving things out of the way during other services, or when testing in a connector that has wires for many other circuits.
You didn't say why you had the codes read, or what the symptoms are. The throttle position sensor doesn't fail too often. Most commonly that code is set by unplugging it when the ignition switch is on. The camshaft position sensor can prevent the engine from starting depending on which engine you have. In the case of these codes, your mechanic will have a diagnostic manual that lists the steps to test each circuit. The first thing he will do, assuming the engine runs, is to record, then erase the codes, then see which ones set again. That will eliminate chasing false codes that someone else may have set inadvertently.
Wednesday, September 25th, 2013 AT 11:01 PM