56956 Mercruiser PLATE, BALL BEARING RETAINER

Table 1
J1939 Code and Description CDL Code and Description Comments
6161-21
Engine Cylinder 1 Pressure : Data Drifted Low 4805-21
Engine Cylinder #1 Pressure Sensor : Data Drifted Low The code is persistently active until the In Cylinder Pressure Sensor (ICPS) Electronic Control Module (ECM) detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6162-21
Engine Cylinder 2 Pressure : Data Drifted Low 4806-21
Engine Cylinder #2 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6163-21
Engine Cylinder 3 Pressure : Data Drifted Low 4807-21
Engine Cylinder #3 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6164-21
Engine Cylinder 4 Pressure : Data Drifted Low 4808-21
Engine Cylinder #4 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6165-21
Engine Cylinder 5 Pressure : Data Drifted Low 4809-21
Engine Cylinder #5 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6166-21
Engine Cylinder 6 Pressure : Data Drifted Low 4810-21
Engine Cylinder #6 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6167-21
Engine Cylinder 7 Pressure : Data Drifted Low 4811-21
Engine Cylinder #7 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6168-21
Engine Cylinder 8 Pressure : Data Drifted Low 4812-21
Engine Cylinder #8 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6169-21
Engine Cylinder 9 Pressure : Data Drifted Low 4813-21
Engine Cylinder #9 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6170-21
Engine Cylinder 10 Pressure : Data Drifted Low 4814-21
Engine Cylinder #10 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6171-21
Engine Cylinder 11 Pressure : Data Drifted Low 4815-21
Engine Cylinder #11 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6172-21
Engine Cylinder 12 Pressure : Data Drifted Low 4816-21
Engine Cylinder #12 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6173-21
Engine Cylinder 13 Pressure : Data Drifted Low 4817-21
Engine Cylinder #13 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6174-21
Engine Cylinder 14 Pressure : Data Drifted Low 4818-21
Engine Cylinder #14 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6175-21
Engine Cylinder 15 Pressure : Data Drifted Low 4819-21
Engine Cylinder #15 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
6176-21
Engine Cylinder 16 Pressure : Data Drifted Low 4820-21
Engine Cylinder #16 Pressure Sensor : Data Drifted Low The code is persistently active until the ICPS ECM detects conditions which are no longer abnormal.
The code is logged once returned to a normal circuit health or operating condition.
Table 2
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Determine if a code is active or logged on the In Cylinder Pressure Sensor (ICPS) Electronic Control Module (ECM).
Codes
Result: An associated code is active.
Repair: Troubleshoot any associated codes before continuing with this test.
Result: A code is active or logged.
Proceed to Test Step 2.
2. Check the Torque of the ICPS Sensor
A. Turn the keyswitch to the OFF position.
B. Disconnect the ICPS adapter harness from the pressure sensor.
C. Check the ICPS torque value.
Note: Low sensor torque may allow leakage and lower than expected cylinder pressures.
Torque
Result: The sensor was torqued to 11.5 1 N m (102 9 lb in).
Proceed to Test Step 3.
Result: The sensor was not torqued to 11.5 1 N m (102 9 lb in).
Repair: Torque the sensor to 11.5 1 N m (102 9 lb in).
If the problem