Posts Tagged: no start
Troubleshooting a Chevrolet Cruze U0100 Code
Understanding the Chevrolet Cruze U0100 Code: Causes and Solutions The U0100 diagnostic trouble code (DTC) is a common issue that many Chevrolet Cruze owners may encounter. This code, which reads “Lost Communication with ECM/PCM ‘A’,” indicates a communication breakdown between the Engine Control Module (ECM) or Powertrain Control Module (PCM) and other vehicle systems. In simpler terms, the ECM or PCM is the brain of your car, controlling various engine and transmission functions. When it fails to communicate with other modules, it triggers the U0100 code, which can lead to … Read More
Check engine and ABS light on GM vehicles — Service Bulletin Fix
Got a check engine and ABS light on a GM vehicle? Here’s the fix GM has issued a technical service bulletin (TSB) #06-06-04-049B for check engine and ABS light on, along with a no start, stall, and various other electrical problems on the vehicles listed below. GM has found that a chaffed wiring harness can cause all these problems. Even though they’ve making cars for over a century, that doesn’t seem to have taught them anything about how to route a wiring harness. In this case, the wiring harness rubs … Read More
Hyundai Sante FE won’t start
No start Hyundai Sante FE No start Hyundai SanteFE, P0335 and P1372 A. The two codes you scanned are P0335 Crankshaft Position Sensor (CKP) Circuit Malfunction and P1372 Segment Time Acquisition Incorrect. In layperson’s terms, the P1372 is a misfire. But don’t start replacing spark plugs and ignition coils yet. The engine computer detects cylinder misfires by monitoring the “rate of revolution” using the CKP. If the computer commands the spark plugs and injectors to fire, it expects to see crankshaft rotate at a predictable rate, with each cylinder contributing … Read More
Dodge Neon won’t start and stalls
Dodge Neon won’t start and stalls If you own either a Dodge or Plymouth Neon and experience a no start or stall condition, you may have a shorted vehicle speed sensor (VSS). The VSS shares the same power circuit as the crankshaft position sensor (CKP) and camshaft position sensor (CMP). The most common way for the VSS to short is power to ground. That prevents the CKP and CMP from getting power. To test, find the VSS on the transmission extension housing. With the connector still on the VSS, backprobe … Read More
Dodge Neon no crank no start
Dodge Neon no crank no start Dodge Neon no crank no start, starter won’t crank, no power at starter Many Dodge Neon owners complain of a no crank or cranks but won’t start condition. Shops have found several possibilities for these problems. I’ll list them, but first you should understand how the system works. Power flows from the Power Distribution Center on Fuse 9 through connector 103 to the Ignition switch. From there the power flows to the control side of the engine starter motor relay. When you turn the … Read More
Ford starter wiring diagram
Ford starter wiring diagram No crank no start Ford issues are pretty easy to diagnose. Click on the illustration below and download the PDF wiring diagram of a typical Ford starting system. You’ll see that the system consists of a fuse, ignition switch, starter relay, transmission range selector (neutral safety switch on for an automatic transmission) or a start inhibit switch for a manual transmission, and a ground control circuit provided by the PCM. The PCM gets involved here because of the ford passive anti-theft system (PATS). The PATS system … Read More
GM PassKey and PassLock overview
Diagnose problems with anti-theft systems in GM vehicles Read More