Table 52
Troubleshooting Test Steps Values Results
1. Diagnostic Codes
A. Connect the electronic service tool to the diagnostic connec-
tor. If necessary, refer to Troubleshooting, “Electronic Service
Tools”.
B. Turn the keyswitch to the ON position.
C. Use the electronic service tool to check for active or logged
codes.
Diagnostic codes Result: A diagnostic code for the EGR valve is active or
logged.
Rectify the EGR valve code. Refer to Troubleshooting, “Di-
agnostic Trouble Codes”.
Result: A 3358-10 diagnostic code is active.
Proceed to Test Step 2.
2. Inspect the Electrical Connectors and the Harness
A. Turn the keyswitch to the OFF position.
B. Inspect the connectors for the components in the EGR sys-
tem. Refer to Troubleshooting, “Electrical Connector - Inspect”.
C. Perform a 30 N (6.7 lb) pull test on each of the wires in any
suspect connector and the connections at the ECM.
D. Check that the ground connection on the ECM and the nega-
tive terminal on the battery are correctly installed.
E. Check the ground connection on the ECM for abrasions and
pinch points.
F. Check the harness for abrasion and pinch points from the
EGR components to the ECM.
H. Check that any suspect connector is installed correctly.
Connectors and
harness
Result: An electrical connector or a cable is not correctly
installed.
Install the connector or cable correctly.
Result: The harness is faulty.
Install a replacement harness.
Result: The harness and connectors are OK.
Proceed to Test Step 3.
3. Check the Air Inlet and Exhaust System
A. Check the air inlet system for leaks and for restrictions.
B. Check the exhaust system for leaks and for restrictions.
Air inlet and ex-
haust system
Result: The air inlet system has a leak or is restricted.
Clear any restrictions in the air inlet system.
Repair any air leaks in the air inlet system.
Result: The exhaust system has a leak or is restricted.
Clear any restrictions in the exhaust system.
Repair any air leaks in the exhaust system.
If the fault is still present, contact the Dealer Solution Net-
work (DSN).
106 UENR0612
Symptom Troubleshooting
This document has been printed from SPI2. NOT FOR RESALE
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