(Table 207, contd)
Troubleshooting Test Steps
Values Results
A. Turn the keyswitch to the OFF position.
B. Install a new barometric pressure sensor.
C. Turn the keyswitch to the ON position. Do not start the
engine.
Note: Wait at least 10 seconds in order for the diagnostic co-
des to become active.
D. Monitor the status parameter for the suspect sensor on the
electronic service tool.
Use the electronic service tool to clear all logged codes.
Return the unit to service.
Result: Either a 3358-13 (3385-13) or 3563-13 (1785-
13) code is active.
Proceed to Test Step 4.
Illustration 129 g03724216
(1) Pipe for the NRS differential pressure
sensor
(2) Pipe for the NRS inlet pressure sensor
376 UENR4469-36
Circuit Tests
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