DTC P0385 Acura
Crankshaft Position (CKP) Sensor B No Signal
Crankshaft Position (CKP) Sensor B No Signal
Description
With the engine running the execution is continuous and P0385, P0389 are not active. No signals from CKP sensor A are detected while signals from CKP sensor B are detected 127 times in succession. If no pulsing signals are detected from CKP sensor A, a malfunction is detected and a DTC is stored. NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.
Cause and Solution
Poor connections or loose terminals at CKP sensor A B and the PCM
Open or Short in the wire between CKP sensor A B and the under-hood fuse relay box (PGM-FI main relay 1)
Open or Short in the wire between the PCM and CKP sensor A B,
Faulty CKP sensor A B
PCM may need to be updated with the latest software
Video Guide
Diagnostic Info
- DTC Code: P0385
- Brand: Acura