821182 Volvo.Penta Pulley

Illustration 1 g01629094
Illustration 2 g01635773
(3) Low oil pressure (4) Diagnostic (5) Atmospheric derate (13) Low boost (14) Low coolant level (15) High coolant temperatureTest Step 1. Inspect Electrical Connectors and Wiring
Turn the engine control switch to the OFF position.
Thoroughly inspect the J14/P14 connector, and the lamp connections. Thoroughly inspect the J17/P17 connector. Refer to Troubleshooting, "Electrical Connectors - Inspect".
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the indicator lamps.
Check the allen head screw on each ECM connector for the proper torque. Refer to service Troubleshooting, "Electrical Connectors - Inspect".
Check the harness for abrasions and for pinch points from the battery to the ECM.Expected Result:All connectors, pins, and sockets are completely coupled and/or inserted. The harness and wiring are free of corrosion, of abrasion, and of pinch points.Results:
OK - All connectors, pins, and sockets are completely coupled and/or inserted. The harness and wiring are free of corrosion, of abrasion, and of pinch points. Proceed to Test Step 2.
NOT OK - There is a problem in the connectors and/or wiring.Repair: Repair the connectors or the harness and/or replace the connectors or the harness. Ensure that all of the seals are correctly in place and ensure that the connectors are completely coupled.Verify that the repair eliminates the problem.STOPTest Step 2. Check for Normal Operation of the Suspect Lamp
Turn the engine control switch to the ON position and monitor the indicator lamps.
The diagnostic lamps will illuminate for a minimum of two seconds after the power is returned to the ECM. The lamp will then turn off.
Turn the engine control switch to the OFF position.Note: A lamp may remain on if a diagnostic condition is present.Expected Result:The suspect lamp illuminates and the lamp turns off per the above description.Results:
OK - The suspect lamp illuminates and the lamp turns off per the above description.Repair: The diagnostic lamps appear to operating correctly at this time. There may be an intermittent electrical problem in the harness or in a connector. If an intermittent problem is suspected, refer to Troubleshooting, "Electrical Connectors - Inspect".STOP
NOT OK - The suspect lamp does not illuminate or the suspect lamp does not turn off per the above description. Proceed to Test Step 3.Test Step 3. Measure the Voltage at the Lamp Socket
Turn the engine control switch to the ON position.
Measure the voltage across each lamp socket. The measurement must be recorded within five seconds of turning the engine control switch to the ON position.Expected Result:The voltage is between 22.0 VDC and 27.0 VDC.Results:
OK - The voltage is between 22.0 VDC and 27.0 VDC.Repair: Replace the bulb.Verify that the repair eliminates the problem.STOP
NOT OK - The voltage is not between 12.0 VDC and 24.0 VDC. Proceed to Test Step 4.Test Step 4. Check the Voltage Supply and Engine Ground To The Lamps
Turn the engine control switch to the ON position.
Measure the voltage between the supply wires to the alarm lamps and engine ground.
Turn the engine control switch to the OFF position.
Measure the resistance between the negative wire for the low coolant level indicator and the engine ground.Expected Result:The voltage measures between 22 VDC and 27 VDC from the engine ground to the alarm lamps supply wires. The resistance between the negative wire of the low coolant level lamp and the engine ground measures less than 10 Ohms.Results:
OK - The voltage measures between 22 VDC and 27 VDC from the engine ground to the alarm lamps supply wires. The resistance between the negative wire of the low coolant level lamp and the engine ground measures less than 10 Ohms. Proceed to Test Step 5.
NOT OK - The voltage measurement is not between 22 VDC and 27 VDC from the engine ground to the supply wires of the alarm lamps. The resistance between the negative wire of the low coolant level lamp and engine ground measures more than 10 Ohms.Repair: There is a problem in the wiring harness or the connectors. Refer to Troubleshooting, "Electrical Connectors - Inspect".STOPTest Step 5. Check Battery Voltage to the ECM
Turn the engine control switch to the ON position.
Measure the voltage between connectorP14-1 and connector P14-21.Expected Result:The voltage is between 22 VDC and 27 VDC.Results:
OK - The voltage is between 22 VDC and 27 VDC. Proceed To Test Step 6.
NOT OK - The voltage is not between 22 VDC and 27 VDC.Repair: The ECM is not receiving the correct battery voltage. Refer to Troubleshooting, "Electrical Power Supply - Test".STOPTest Step 6. Bypass the ECM
Turn the engine control switch to the OFF position.
Disconnect ECM connector P14.
Install Deutsch connectors on a 203 mm (8 inch) wire.
Turn the engine control switch to the ON position.
Connect the wire between the following locations:
P14-21 and P14-3 (low oil pressure lamp)
P14-21 and P14-4 (diagnostic lamp)
P14-21 and P14-5 (derate for atmospheric pressure)
P14-21 and P14-13 (low boost pressure)
P14-21 and P14-15 (high coolant temperature lamp)
P14-1 and P14-14 (low coolant level lamp)Expected Result:Each lamp illuminates when the jumper wire is installed.Results:
OK - Each lamp illuminates when the jumper wire is installed.Repair: The harness and the lamps are working properly. Reconnect all of the connectors. Repeat the self test of the alarm circuit. If the problem still exists replace the ECM. Refer to Troubleshooting, "ECM - Replace".STOP
NOT OK - A lamp does not illuminate when the jumper is installed.Repair: There is a problem in the wiring harness or the connectors. Refer to Troubleshooting, "Electrical Connectors - Inspect".STOP