Table 125
Troubleshooting Test Steps
Values Results
1. Diagnostic Codes
A. Use the electronic service tool to check for active or logged
codes.
Diagnostic codes Result: An associated code is active or logged.
Repair: Troubleshoot associated codes before continuing
with this procedure. Refer to Troubleshooting, Event Codes
for further information.
Result: A diagnostic code for the NRS valve is active or
logged.
Repair: Rectify the NRS valve code. Refer to Troubleshoot-
ing, “Motorized Valve - Test”.
Result: A 2659-7 (E1319 (2)) code is active with no ETI
code active.
Proceed to Test Step 2.
Result: A 2659-7 (E1319 (2)) code is active with an ETI
code of 1 active.
Proceed to Test Step 7.
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 NRS sys-
tem. Refer to Troubleshooting, “Electrical Connectors -
Inspect”.
C. Perform a 45 N (10 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 screws for the ECM connector for the correct tor-
que of 6 N·m (53 lb in).
G. Check the harness for abrasion and pinch points from the
NRS 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.
Repair: 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.
(continued)
232 UENR4469-36
Symptom Troubleshooting
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