3852549 Volvo.Penta Pin, support housing

Table 1
Diagnostic Codes Table
Code and Description Conditions which Generate this Code System Response
E043(1) Low System Voltage Warning The battery supply voltage is less than the trip point for low battery voltage. The code is logged.
168-0 Electrical System Voltage : High The battery supply voltage is greater than 32 VDC for two seconds.
The engine's ECM has been powered for three seconds.
The engine is not being cranked.
168-1 Electrical System Voltage : Low The battery supply voltage is less than 9 VDC for two seconds.
The engine's ECM has been powered for three seconds.
The engine is not being cranked.
168-2 Electrical System Voltage : Erratic, Intermittent, or Incorrect The engine is running. The battery voltage falls below 9 VDC for at least .06 seconds. The voltage returns above 9 VDC.
or
Three voltage readings in the last seven seconds were below 9 VDC. The engine's ECM receives 24 VDC from the battery. Electrical power comes from the 20 amp breaker for the ECM to the normally closed contacts of relay "R2A". The electrical power to the ECM from the normally closed contact of relay "R2A" is on wire C150 and on wire 150. The wire C150 goes to pin P1-53 of ECM connector J1/P1. The wire 150 goes to pin P1- 52 of ECM connector J1/P1. The −Battery is applied to pin P1-63 and pin P1-65 of ECM connector J1/P1. The wire numbers for the −Battery are wire D229 and wire 229. The Engine Control Switch (ECS) sends a signal to pin P1-70 of the ECM when the ECS is in the following positions: REMOTE, STOP and START. When the ECM senses battery voltage on pin P1-70 of the ECM, the ECM will power up. When the ECS is in the OFF/RESET position, voltage is not present on P1-70 and the ECM will power down.When the emergency stop switch is activated, relay "R4" is energized. Relay "R2A" is energized through "DIODE_1_2". Electrical power from relay "R2A" is routed to terminal 3 of the timer. When 24 VDC is applied to terminal 3 of the timer, the timer activates for 2.5 seconds. The timer outputs 24 VDC to the coil of the air shutoff switch (ASOS). The timer also outputs 24 VDC to the diode assembly and to the coils of relay "R3A" and relay "R3". When relay "R2A" is energized, the normally closed contacts of relay "R2A" open. This removes electrical power to the ECM.In order to restart the engine, the operator must correct the cause of the emergency stop condition. The ECS must be turned to the OFF/RESET position for three seconds. This resets the ECM and the air shutoff timer. In addition to turning the ECS to the OFF/RESET position, the operator must manually open the air shutoff valves before starting the engine.The presence of two +Battery connections and two −Battery connections to the ECM reduce harness resistance. All of these connections must be complete in order to ensure proper engine operation.
Illustration 1 g01593350
Illustration 2 g01218324
P1 ECM connector
(P1-52) +Battery
(P1-53) +Battery
(P1-63) −Battery
(P1-65) −Battery
(P1-70) Keyswitch
Illustration 3 g01338583
Terminal locations for the following connectors P-C2/A-C91 Connector for the power distribution panel, A-C2/J-C2 RH rigid harness connectors and C-C2/J-C1 LH rigid harness connectors.
(Terminal K) +Battery to ECM 150-BK(Black)
(Terminal L) +Battery to ECM C150-BK(Black)
(Terminal M) -Battery to ECM D229-BK(Black)
(Terminal N) -Battery to ECM 229-BK(Black)
Illustration 4 g01338588
Terminal locations for the C-C17/F-C1 LH rigid harness connectors and the connectors G-C6/F-C2 for a LH Control panel
(Terminal 14) Keyswitch 113-BK(Black)
(Terminal 15) Remote keyswitch 040-BK(Black)
(Terminal 16) +Battery to ECS C150-BK(Black)
Illustration 5 g01337991
Connector locations
(1) A-C1/E-C2 RH rigid harness connectors
(2) A-C2/J-C2 RH rigid harness connectors
(3) P-C1/A-C90 Connectors for the power distribution panel
(4) P-C2/A-C91 Connectors for the power distribution panel
(5) G-C6/F-C2/F-C1/A-C92 Connectors for a RH Control panel
(6) C-C22 Connection for the P2 ECM connector
(7) C-C15 Connection for the P1 ECM connector
(8) G-C6/F-C2/F-C1/C-C17 Connectors for a LH Control panel
(9) C-C18/TB-C1 Customer connectors
(10) C-C2/J-C1 LH rigid harness connectors
(11) C-C1/E-C1 LH rigid harness connectors Note: If a remote START switch is installed, the remote START switch must be in the STOP position for this test. Test Step 1. Inspect Electrical Connectors and Wiring
Turn the ECS to the OFF/RESET position.
Turn the circuit breaker for the battery to the OFF position.
Verify that the circuit breakers are not tripped.
Thoroughly inspect the ECM connector J1/P1. Inspect all of the other connectors in the circuit. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that are associated with the circuit.
Check the allen head screw on each ECM connector for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Check the harness and the wiring for abrasion and for pinch points. Expected Result:All connectors, pins, and sockets are completely coupled and/or inserted, and the harness and wiring are free of corrosion, of abrasion, and of pinch points.Results:
OK - The connectors and wiring are OK. Proceed to Test Step 2.
Not OK - The connectors and/or wiring need repair.Repair: Repair the connectors or wiring and/or replace the connectors or wiring.STOPTest Step 2. Check the Voltage to the ECM
Disconnect the ECM connector J1/P1.
Turn the circuit breaker for the battery to the ON position.
Turn the ECS to the STOP position. Note: Verify that wire D229 and wire 229 have continuity from the ECM to the −Battery terminal.
Measure the voltage at the ECM. Measure the voltage between P1-53 and P1-65. Measure the voltage between P1-52 and P1-63.
Measure the voltage between P1-70 and P1-65 at the ECM. Expected Result:The voltage is 24 3 VDC. The difference between the three voltage measurements is less than 0.5 VDC.Results:
OK - The ECM is receiving the correct voltage.Repair: The problem may be intermittent. If the problem is intermittent, refer to Troubleshooting, "Electrical Connectors - Inspect".STOP
Not OK - The voltage is less than 24 3 VDC. The wiring or components between the battery and the ECM may be pr