DTC U1100-00: Lin Communication: Communication Error To Engine Oil Level Sensor: Notes

DTC U1100:00 DETECTION CONDITION AND POSSIBLE CAUSE

DTC U1100:00	LIN communication: communication error to engine oil level sensor
DETECTION CONDITION	With the following conditions continued for 1.5 s, a communication error between the PCM and engine oil level sensor is continued for 5 s or more. Battery voltage: 10-16 V Ignition switched ON (engine off or on) Diagnostic support note This is an intermittent monitor (other). The check engine light does not illuminate. FREEZE FRAME DATA is not available. Snapshot data is available. DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	Not applicable
POSSIBLE CAUSE	LIN communication line malfunction between engine oil level sensor and PCM Engine oil level sensor connector or terminals malfunction Short to ground or open circuit in engine oil level sensor power supply circuit Short to ground in wiring harness between ENGINE 3 15 A fuse and engine oil level sensor terminal A ENGINE3 15 A fuse malfunction Open circuit in wiring harness between main relay terminal C and engine oil level sensor terminal A PCM connector or terminals malfunction Engine oil level sensor malfunction PCM malfunction
Courtesy of MAZDA MOTORS CORP.