PLATE-DIVIDER 6T7628 - Caterpillar

Illustration 5 g00956355
Flange of the sensor and mounting bracket
The flange of the sensor should be flush against the engine in order to ensure proper operation.
Inspect the bracket in order to ensure that the installation allows the flange of the sensor to be flush against the engine.Verify that the bracket is not bent.Note: The bracket cannot be replaced separately.
Ensure that one O-ring has been installed on the sensor, and ensure that the O-ring is free of damage.
If the following diagnostic code is active, there may be a problem with the assembly of the engine:
22-11 Primary to Secondary Engine Speed Signal Calibration Refer to Illustration 5.Expected Result:The sensors and the bracket are properly installed.Results:
OK - The sensors and the bracket are properly installed. Proceed to Test Step 3.
Not OK - Repair: Perform the following procedure in order to properly install the sensors and the bracket:
Loosen the bolt that holds the sensor mounting bracket to the engine.
Seat the sensor and tighten the bolt.If the sensor will not seat, repair the sensor or replace the sensor, as required.Note: The sensor must not be removed from the bracket.
Ensure that the sensor is properly oriented and that the harness is secured in the proper location.
Verify that the repair eliminates the problem.STOPTest Step 3. Measure the Sensor Resistance Through the Engine Harness
Turn the key switch to the OFF position.
Thoroughly inspect the J2/P2 ECM connector. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Perform a 45 N (10 lb) pull test on the following wires in the P2 ECM connector that are associated with the engine speed/timing sensors:
Terminal 48
Terminal 49
Terminal 58
Terminal 59Refer to Illustration 4.
Ensure that the latch tab on the connector is properly latched and ensure that the latch tab is fully latched.
Check the ECM connector (allen head screw) for the proper torque of 6.0 N m (55 lb in).
Repair the harness or repair the connector if a problem is found.
Ensure that the wiring harness is correctly routed and secured at the proper locations.
Ensure that the harness wiring is not pulled too tightly. When the harness wiring is pulled too tightly, vibrations or movement can cause intermittent connections.
Inspect the harness wiring for nicks and abrasions.
If the harness and the connector are OK, disconnect the J2/P2 ECM connector.
Primary engine speed/timing sensorRefer to Illustration 4.
Use a multimeter to measure the sensor resistance (Ohms) between P2:48 (Primary Engine Speed/Timing Positive) and P2:49 (Primary Engine Speed/Timing Negative).
Check for an intermittent open circuit or short circuit by moving the harness while the measurement for resistance is being taken. Pull the wires