3817721 Insert Volvo.Penta
Controls and Cables
Insert
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Number on catalog scheme: 5
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Controls and Cables
Volvo.Penta
Volvo Penta entire parts catalog list:
Information:
Test Step 1. Use Caterpillar Electronic Technician (ET) to Determine the Configuration for the Vehicle Speed Input to the ECM
Connect Cat ET to the cab data link connector.
Access the "Configuration Parameter List". View the "Vehicle Speed Parameters". Determine if the vehicle is configured to use the "Vehicle Speed Calibration" option, the "Vehicle Speed Cal (J1939-Trans)" option, or the "Vehicle Speed Cal (J1939-ABS)" option. Expected Result:RESULT 1 The ECM is configured for the "Vehicle Speed Calibration" option.RESULT 2 The ECM is configured to use the "Vehicle Speed Cal (J1939-Trans)" option.RESULT 3 The ECM is configured to use the "Vehicle Speed Cal (J1939-ABS)" option.Results:
RESULT 1 - The ECM is configured for the "Vehicle Speed Calibration" option. Proceed to Test Step 2.
RESULT 2 - The ECM is configured to use the "Vehicle Speed Cal (J1939-Trans)" option. Proceed to Test Step 3.
RESULT 3 - The ECM is configured to use the "Vehicle Speed Cal (J1939-ABS)" option. Proceed to Test Step 4.Test Step 2. Calculating Pulses Per Kilometer (Mile) When all the Variables are Known.
Calculate pulses per kilometer (PPKM) or pulses per mile (PPM). PPKM = K X Ra X N.PPM = M X Ra X N.K - This symbol represents the tire revolutions per kilometer. This is a constant that is divided by the tire static loaded radius.M - This symbol represents the tire revolutions per mile. This is a constant that is divided by the tire static loaded radius.Ra - This symbol represents the rear axle ratio. The rear axle ratio can typically be found on the housing of the rear axle, or the rear axle ratio can typically be found on the specification sheet for the vehicle.N - This symbol represents the number of chopper teeth on the transmission drive shaft. The magnetic pickup sensor is mounted here. The number of chopper teeth is usually 16. Some transmissions have 11 tooth chopper wheels.
Use Cat ET to enter pulses per km (PPKM) or pulses per mile (PPM) into the ECM. Expected Result:This value is within the valid range of the ECM.Results:
OK - Once the value is entered, verify that the ECM is accurately measuring vehicle speed. Proceed to Test Step 5.
Not OK - Recalculate the value and re-enter the correct value into the ECM.STOPTest Step 3. Calculate the Revolutions Per Kilometer (Mile) of the Transmission Output Shaft
The correct revolutions per kilometer (mile) of the transmission output shaft must be entered for the "Vehicle Speed Cal J1939-Trans" setting. If this value is unknown, either of the following calculations can be used to obtain the correct setting:
Divide the pulses per kilometer (mile) of the sensor on the transmission output shaft by the number of teeth on the transmission output shaft.
Multiply the axle ratio by the number of revolutions per kilometer (mile) of the tire.
Use Cat ET to enter the calculated value into the ECM. Expected Result:The value is within the valid range of the ECM.Results:
Yes - Once the value is entered, verify that the ECM is accurately measuring vehicle speed. Proceed to Test Step 5.
No - Recalculate the value and re-enter the correct value into the ECM.STOPTest Step 4. Calculate Tire Revolutions Per Kilometer (Mile) When all the Variables are Known
The correct calibration number must be entered for the "Vehicle Speed Cal J1939-ABS" setting. If this value is unknown, the following calculation can be used to obtain the correct setting. Divide the actual tire revolutions per kilometer (mile) by the tire revolutions per kilometer (mile) that is broadcast by the ABS.For example, the actual tire revolutions per kilometer (mile) could equal 400 revolutions per kilometer (mile). The tire revolutions per kilometer (mile) that is broadcast by the ABS could equal 500 revolutions per kilometer (mile).The formula would be 400 / 500 = 0.800.Therefore, 0.800 would be the value that would be entered into the ECM.
Use Cat ET to enter the calculated value into the ECM. Expected Result:This value is within the valid range of the ECM.Results:
OK - Once the value is entered, verify that the ECM is accurately measuring vehicle speed. Proceed to Test Step 5.
Not OK - Recalculate the value and re-enter the correct value into the ECM.STOPTest Step 5. Inspect the Speedometer Calibration.Determine the speedometer's vehicle speed calibration setting. You may be required to contact the OEM dealer or you may be required to send the vehicle to the OEM dealer for this information.Expected Result:The speedometer must be calibrated to one of the following values:
For "Other Truck Manufacturer" configurations, the value is 18,600 pulses per kilometer (30,000 pulses per mile).
For "GM Truck Manufacturer" configurations, the value is 2,485 pulses per kilometers (4,000 pulses per mile).The ECM can only provide the signal that is listed above. Results:
OK - The speedometer is correctly calibrated.STOP
Not OK - Repair: Perform the following diagnostic procedure:Send the vehicle to the OEM dealer or reprogram the OEM speedometer to the correct setting for the pulses per kilometer (mile).STOP
Connect Cat ET to the cab data link connector.
Access the "Configuration Parameter List". View the "Vehicle Speed Parameters". Determine if the vehicle is configured to use the "Vehicle Speed Calibration" option, the "Vehicle Speed Cal (J1939-Trans)" option, or the "Vehicle Speed Cal (J1939-ABS)" option. Expected Result:RESULT 1 The ECM is configured for the "Vehicle Speed Calibration" option.RESULT 2 The ECM is configured to use the "Vehicle Speed Cal (J1939-Trans)" option.RESULT 3 The ECM is configured to use the "Vehicle Speed Cal (J1939-ABS)" option.Results:
RESULT 1 - The ECM is configured for the "Vehicle Speed Calibration" option. Proceed to Test Step 2.
RESULT 2 - The ECM is configured to use the "Vehicle Speed Cal (J1939-Trans)" option. Proceed to Test Step 3.
RESULT 3 - The ECM is configured to use the "Vehicle Speed Cal (J1939-ABS)" option. Proceed to Test Step 4.Test Step 2. Calculating Pulses Per Kilometer (Mile) When all the Variables are Known.
Calculate pulses per kilometer (PPKM) or pulses per mile (PPM). PPKM = K X Ra X N.PPM = M X Ra X N.K - This symbol represents the tire revolutions per kilometer. This is a constant that is divided by the tire static loaded radius.M - This symbol represents the tire revolutions per mile. This is a constant that is divided by the tire static loaded radius.Ra - This symbol represents the rear axle ratio. The rear axle ratio can typically be found on the housing of the rear axle, or the rear axle ratio can typically be found on the specification sheet for the vehicle.N - This symbol represents the number of chopper teeth on the transmission drive shaft. The magnetic pickup sensor is mounted here. The number of chopper teeth is usually 16. Some transmissions have 11 tooth chopper wheels.
Use Cat ET to enter pulses per km (PPKM) or pulses per mile (PPM) into the ECM. Expected Result:This value is within the valid range of the ECM.Results:
OK - Once the value is entered, verify that the ECM is accurately measuring vehicle speed. Proceed to Test Step 5.
Not OK - Recalculate the value and re-enter the correct value into the ECM.STOPTest Step 3. Calculate the Revolutions Per Kilometer (Mile) of the Transmission Output Shaft
The correct revolutions per kilometer (mile) of the transmission output shaft must be entered for the "Vehicle Speed Cal J1939-Trans" setting. If this value is unknown, either of the following calculations can be used to obtain the correct setting:
Divide the pulses per kilometer (mile) of the sensor on the transmission output shaft by the number of teeth on the transmission output shaft.
Multiply the axle ratio by the number of revolutions per kilometer (mile) of the tire.
Use Cat ET to enter the calculated value into the ECM. Expected Result:The value is within the valid range of the ECM.Results:
Yes - Once the value is entered, verify that the ECM is accurately measuring vehicle speed. Proceed to Test Step 5.
No - Recalculate the value and re-enter the correct value into the ECM.STOPTest Step 4. Calculate Tire Revolutions Per Kilometer (Mile) When all the Variables are Known
The correct calibration number must be entered for the "Vehicle Speed Cal J1939-ABS" setting. If this value is unknown, the following calculation can be used to obtain the correct setting. Divide the actual tire revolutions per kilometer (mile) by the tire revolutions per kilometer (mile) that is broadcast by the ABS.For example, the actual tire revolutions per kilometer (mile) could equal 400 revolutions per kilometer (mile). The tire revolutions per kilometer (mile) that is broadcast by the ABS could equal 500 revolutions per kilometer (mile).The formula would be 400 / 500 = 0.800.Therefore, 0.800 would be the value that would be entered into the ECM.
Use Cat ET to enter the calculated value into the ECM. Expected Result:This value is within the valid range of the ECM.Results:
OK - Once the value is entered, verify that the ECM is accurately measuring vehicle speed. Proceed to Test Step 5.
Not OK - Recalculate the value and re-enter the correct value into the ECM.STOPTest Step 5. Inspect the Speedometer Calibration.Determine the speedometer's vehicle speed calibration setting. You may be required to contact the OEM dealer or you may be required to send the vehicle to the OEM dealer for this information.Expected Result:The speedometer must be calibrated to one of the following values:
For "Other Truck Manufacturer" configurations, the value is 18,600 pulses per kilometer (30,000 pulses per mile).
For "GM Truck Manufacturer" configurations, the value is 2,485 pulses per kilometers (4,000 pulses per mile).The ECM can only provide the signal that is listed above. Results:
OK - The speedometer is correctly calibrated.STOP
Not OK - Repair: Perform the following diagnostic procedure:Send the vehicle to the OEM dealer or reprogram the OEM speedometer to the correct setting for the pulses per kilometer (mile).STOP