61638-90J00 Suzuki HOOK, ENGINE COVER REAR PORT

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Schematic for the 5 volt supplyTest Step 1. Inspect the Electrical Connectors and the Wiring
Turn the keyswitch to the OFF position.
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Right side view of the scraper (1) Turbocharger inlet pressure sensor (2) Fuel pressure sensor
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Left side view (3) Injection actuation pressure sensor (4) Boost pressure sensor (5) Atmospheric pressure sensor (6) J2/P2 connectors (7) J1/P1 connectors (8) Engine oil pressure sensor
Thoroughly inspect connectors (6) and (7). Thoroughly inspect the connectors for each pressure sensor. Refer to Troubleshooting, "Electrical Connectors - Inspect".
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P2 terminals that are associated with the 5 volt supply for the pressure sensors (P2-17) Return (P2-54) Return (P2-72) +5 VDC (P2-80) +5 VDC
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P1 terminals that are associated with the 5 volt supply for the pressure sensors (P1-2) +5 VDC (P1-3) Return
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Connectors for the sensors (A) Supply (B) Return (C) Signal
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the pressure sensor supply.
Check the torque of the allen head screws for the ECM connectors. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Check the harness and the wiring for abrasion and for pinch points from each sensor back to the ECM.Expected Result:All of the 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 harness and connectors appear to be OK. Proceed to Test Step 2.
Not OK - The connectors and/or wiring are not OK.Repair: Repair the wiring and/or the connectors. Replace parts, if necessary. Ensure that all of the seals are properly in place and ensure that the connectors are completely coupled. Verify that the repair eliminates the problem.STOPTest Step 2. Check for Active Diagnostic Codes
Connect the Caterpillar Electronic Technician (ET) to the service tool connector. Refer to Troubleshooting, "Electronic Service Tools".
Turn the keyswitch to the ON position.
Observe the "Active Diagnostic" screen on Cat ET. Wait at least 15 seconds so that any codes may become active. Look for these codes:
262-03
262-04Expected Result:One of the above codes is active.Results:
No active codes - None of the above codes are active.Repair: If any of the above codes are logged and the engine is not running properly, refer to Troubleshooting, "Troubleshooting Without a Diagnostic Code".If the engine is running properly at this time, there may be an intermittent problem in a harness that is causing the codes to be logged. Refer to Troubleshooting, "Electrical Connectors - Inspect".STOP
Active 03 code - An 03 diagnostic code is active. Proceed to Test Step 3.
Active 04 code - An 04 diagnostic code is active. Proceed to Test Step 4.Test Step 3. Check the Voltage on the +5 V Supply Wire
Turn the keyswitch to the OFF position.
Disconnect the harness connectors for the following sensors:
Injection actuation pressure sensor J204/P204
Boost pressure sensor J200/P200
Atmospheric pressure sensor J203/P203
Fuel pressure sensor J209/P209
Engine oil pressure sensor J201/P201
Turbocharger inlet pressure sensor J205/P205
Turn the keyswitch to the ON position.Note: Be sure to wiggle the harness during the following measurements in order to reveal an intermittent condition.
Measure the voltage between terminals A and B at each sensor connector on the engine harness.Expected Result:Each voltage measurement is 5.0 0.2 VDC.Results:
OK - Each voltage measurement is 5.0 0.2 VDC.Repair: Connect all of the sensor connectors. Clear all diagnostic codes. Check for active diagnostic codes. If the problem is intermittent, refer to Troubleshooting, "Electrical Connectors - Inspect".STOP
Not OK - At least one voltage measurement is not 5.0 0.2 VDC. There is a problem with the wiring or with the ECM. Proceed to Test Step 5.Test Step 4. Disconnect the +5 V Pressure Sensors and Check for Active Diagnostic Codes
Disconnect the following sensors one at a time:
Injection actuation pressure sensor J204/P204
Boost pressure sensor J200/P200
Atmospheric pressure sensor J203/P203
Fuel pressure sensor J209/P209
Engine oil pressure sensor J201/P201
Turbocharger inlet pressure sensor J205/P205
Wait for 15 seconds after you disconnect each sensor. Look for the active 262-04 diagnostic code to deactivate.Expected Result:The 262-04 diagnostic code deactivates when a particular sensor is disconnected.Results:
OK - The 262-04 diagnostic code deactivates when a particular sensor is disconnected.Repair: Connect the suspect sensor. If the code returns, replace the sensor.Connect all of the connectors. Verify that the problem is resolved.STOP
Not OK - The 262-04 diagnostic code remains after all of the sensors are disconnected. Leave the sensors disconnected. Proceed to Test Step 5.Test Step 5. Check the +5 V Supply Wire for a Short to Engine Ground or a Short Circuit
Turn the keyswitch to the OFF position.
Disconnect the P1 and P2 connectors.
Verify that all of the pressure sensors a