2C8281 CIRCLE AND BEAM ASSEMBLY Caterpillar parts
120G
Rating:
Alternative (cross code) number:
CA2C8281
2C-8281
2C8281
CA2C8281
2C-8281
2C8281
MOTOR GRADER,
Compatible equipment models: 2C8281:
Information:
The Electronic Control Module (ECM) detects all of the following conditions:
The engine has been running for three seconds, and the engine is not cranking.
The pattern of the timing ring from the primary engine speed/timing sensor is lost without a ramp down in engine speed (rpm).
The pattern of the timing ring returns within one second of being lost.
Battery voltage is greater than 9 VDC for the last two seconds.System Response:The ECM will log the diagnostic code. The ECM will use the secondary engine speed/timing sensor.Possible Performance Effect:
Engine misfires
Engine shutdownNote: The engine will shut down only if both the primary engine speed/timing sensor and the secondary engine speed/timing sensor fail.Troubleshooting:Test Step 1. Perform the following diagnostic procedure: "Engine Speed/Timing Sensor Circuit - Test"Results:
OK - STOP
The engine has been running for three seconds, and the engine is not cranking.
The pattern of the timing ring from the primary engine speed/timing sensor is lost without a ramp down in engine speed (rpm).
The pattern of the timing ring returns within one second of being lost.
Battery voltage is greater than 9 VDC for the last two seconds.System Response:The ECM will log the diagnostic code. The ECM will use the secondary engine speed/timing sensor.Possible Performance Effect:
Engine misfires
Engine shutdownNote: The engine will shut down only if both the primary engine speed/timing sensor and the secondary engine speed/timing sensor fail.Troubleshooting:Test Step 1. Perform the following diagnostic procedure: "Engine Speed/Timing Sensor Circuit - Test"Results:
OK - STOP
Caterpillar SIS machinery equipment:
Caterpillar parts catalog:
Parts circle Caterpillar catalog:
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