P0340 and P0702 Fault Diagnosis for 2004 Jeep Grand Cherokee CRD 2.7 in Ireland
Hello everyone, I'm new to this forum and hoping to get some clarity on an issue I'm facing with my 2004 Jeep Grand Cherokee CRD 2.7. I live in Ireland and have been driving the vehicle without any problems until recently. Suddenly, the check engine light came on, and the car entered limp mode—limiting gear selection to second gear. I took it to a local garage that specializes in 4x4 vehicles, but they admitted they’ve never worked on a Jeep Grand Cherokee CRD before and have no experience with this model. After calling around, I found the nearest qualified workshop is over 150 miles away, which makes servicing difficult. I've already retrieved two diagnostic codes: P0340 and P0702. Based on online research, I replaced the gear selector PCB module and am now waiting for a new camshaft position (CMP) sensor to arrive. I'm wondering if this is the correct course of action. Will replacing these components resolve the limp mode and turn off the check engine light? Or do I still need to travel 150 miles to have it reset at a specialized workshop? I apologize for the lengthy explanation—this issue has left me completely stuck, and I'm unable to get help from local mechanics or online forums. Any insights would be greatly appreciated.
Jeep CRD models are relatively rare in Ireland, so available information may be limited. However, here are some helpful resources: - https://www.youtube.com/watch?v=cybbeQ1-AZU - https://www.youtube.com/watch?v=cybbe%201-AZU While waiting for the new camshaft position sensor (CMP), please inspect the connector and wiring at the CMP sensor. Ensure it is securely connected, free from corrosion, and check that the first inch or so of wiring isn't pinched, rubbed, or damaged.