Lc200: Check engine and 4LO light blinks sometimes when i start my car.

[Afreed H]

My vdj200 turns the check engine and 4lo light on sometimes when I start the car, but when I switch it off, immediately start back up, the lights are gone. I diagnosed it one day when the lights were on; it gave error codes for the check engine light,
P0335-Crankshaft position sensor A circuit
P0340 - Camshaft position sensor A
And for the 4lo light, it’s telling me the transfer case circuit. I don’t really understand if those sensors are dead or working because it only lights up sometimes, maybe two times a month or so.

 

[NikP]

Since it's intermittent it's likely pointing to the sensor is failing or there's a loose connection to the sensor. Since it starts, it suggests the sensor isn't completely bad. The service manual also references low voltage along with rpm's under 600. A low battery might contribute to this condition. Start with checking your battery condition since it's easy. Then move toward the sensor.

 

[Afreed H]

Since it's intermittent it's likely pointing to the sensor is failing or there's a loose connection to the sensor. Since it starts, it suggests the sensor isn't completely bad. The service manual also references low voltage along with rpm's under 600. A low battery might contribute to this condition. Start with checking your battery condition since it's easy. Then move toward the sensor.

I think my batteries are the problem because sometimes there is a delay when i try to switch on my car

 

[wjcunningham3]

Any further update on this? I have had this issue before as well and the shop cleared it and it didn't come back until 6 months later.