Perkins 1106D Troubleshooting Manual page 174

174
Troubleshooting Section
Illustration 68
View of the connector for the Wastegate regulator
(1) Ground (GND)
(2) Signal (SIG)
Illustration 69
Wastegate regulator
(1) Wastegate regulator
Test Step 1. Check for Diagnostic Codes
A. Turn the keyswitch to the OFF position.
B. Connect the electronic service tool to the
diagnostic connector.
C. Turn the keyswitch to the ON position. Start the
electronic service tool.
D. Monitor the electronic service tool for active
diagnostic codes and/or logged diagnostic codes.
Expected Result:
One or more diagnostic codes are active or logged.
Results:
•
526-5, 526-6 are active and/or logged – Proceed
to Test Step 2.
•
No Codes – The fault seems to be eliminated.
This document is printed from SPI². Not for RESALE
Repair: For intermittent faults, refer to
Troubleshooting, "Electrical Connectors - Inspect".
STOP.
Test Step 2. Inspect Electrical Connectors
and Wiring
A. Thoroughly inspect the P2/J2 connectors and
the P511 connector for the wastegate regulator.
Refer to Troubleshooting, "Electrical Connectors -
Inspect" for details.
B. Perform a 45 N (10 lb) pull test on each of the
wires that are associated with the wastegate
g01806858
solenoid.
C. Check the screw for the ECM connector for the
correct torque of 5.0 N·m (44 lb in).
Expected Result:
All connectors, pins, and sockets are completely
coupled and/or inserted and the harness is free of
corrosion, abrasion, and pinch points.
Results:
•
OK – The harness is OK. Proceed to Test Step 3.
•
Not OK – There is a fault in the connectors and/or
the harness.
Repair: Repair the connectors or the harness
g01806873
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 fault.
STOP.
Test Step 3. Determine the Diagnostic
Code that is Active
A. Turn the keyswitch to the ON position. Access the
"Diagnostics Tests" on the electronic service tool.
Activate the "Turbo Wastegate Solenoid Test".
Wait at least 30 seconds in order for the result to
be displayed.
B. Determine if the fault is related to either of the
following:
•
"Low current" (open circuit)
• "High current" (short circuit)
Expected Result:
The electronic service tool displays no diagnostic
codes.
KENR6201-01