Perkins 1106D Troubleshooting Manual page 176

176
Troubleshooting Section
5. If the fault is resolved with the test ECM,
reconnect the suspect ECM.
6. If the fault returns with the suspect ECM,
replace the ECM.
7. Use the electronic service tool in order to clear
all logged diagnostic codes and then verify that
the repair eliminates the fault.
STOP.
Test Step 6. Disconnect the Solenoid in
order to Create an Open Circuit
A. Turn the keyswitch to the OFF position.
B. Disconnect the P511 connector for the wastegate
regulator in order to create an open circuit.
C. Turn the keyswitch to the ON position. Access
the "Special Tests" under the "Diagnostics" menu
on the electronic service tool. Activate the "Turbo
Wastegate Solenoid Output Test" on the electronic
service tool. Wait at least 30 seconds for activation
of the diagnostic codes.
D. Check for active diagnostic codes on the electronic
service tool.
Expected Result:
The 526-5 diagnostic code is now active.
Results:
•
OK – The 526-5 diagnostic code is now active.
Repair: There is a short in the solenoid for the
wastegate regulator.
1. Temporarily connect a replacement wastegate
regulator.
2. If the fault is eliminated, reconnect the suspect
wastegate regulator. If the fault returns,
permanently install the replacement wastegate
regulator.
STOP.
•
Not OK – There is still a 526-6 diagnostic code.
Proceed to Test Step 7.
Test Step 7. Create an Open Circuit at the
ECM
A. Turn the keyswitch to the OFF position.
B. Remove the wires from P2:17 and P2:44 in order
to create an open circuit at the ECM.
This document is printed from SPI². Not for RESALE
C. Turn the keyswitch to the ON position. Access
the "Special Tests" under the "Diagnostics" menu
on the electronic service tool. Activate the "Turbo
Wastegate Solenoid Output Test" on the electronic
service tool. Wait at least 30 seconds for activation
of the diagnostic codes.
D. Check for active diagnostic codes on the electronic
service tool.
Expected Result:
526-5 diagnostic code is now active.
Results:
•
OK – The 526-5 diagnostic code is now active.
There is a short circuit in the harness between the
ECM and the solenoid.
Repair: Repair the harness or replace the harness.
STOP.
•
Not OK – The 526-6 diagnostic code is still
present.
Repair: Perform the following repair:
1. Make sure that the latest flash file for the
application is installed in the ECM. Refer to
Troubleshooting, "Flash Programming".
2. Contact Perkins Global Technical Support.
Note: This consultation can greatly reduce the repair
time.
3. If Perkins Global Technical Support
recommends the use of a test ECM, install a
test ECM. Refer to Troubleshooting, "Replacing
the ECM".
4. Use the electronic service tool to recheck the
system for active diagnostic codes.
5. If the fault is resolved with the test ECM,
reconnect the suspect ECM.
6. If the fault returns with the suspect ECM,
replace the ECM.
7. Use the electronic service tool in order to clear
all logged diagnostic codes and then verify that
the repair eliminates the fault.
STOP.
•
Not OK – Repeat the diagnostic procedure from
Test Step 1.
KENR6201-01