Chrysler
Type:
    Powertrain - Ignition System or Misfire - ISO/SAE Controlled
Description:
    Crankshaft Position Sensor Circuit Conditions
Cause:
    Engine cranking, then test started and the PCM detected that the CKP sensor signal did not change for 2-4 seconds Inspect crankshaft sensor wiring and connectors for damaged or backed-out terminals for the cause of a fault

Generic
Type:
    Powertrain - Ignition System or Misfire - ISO/SAE Controlled
Description:
    Crankshaft Position Sensor "A" Circuit

GM
Type:
    Powertrain - Ignition System or Misfire - ISO/SAE Controlled
Description:
    CKP Sensor Performance Conditions
Cause:
    Engine speed under 300 rpm, then the PCM detected that 8 consecutive CKP sensor signals were missing for 8 Cyl No 1 events, or with the engine running, then the PCM detected 8 consecutive CKP signals were missing for 32 Cyl No 1 events

Nissan
Type:
    Powertrain - Ignition System or Misfire - ISO/SAE Controlled
Description:
    Crankshaft position (CKP) sensor 1 - circuit malfunction.
Cause:
    Wiring, CKP sensor, ECM