C15 – 0171-11 Ambient Air Temperature Data Lost

Conditions Which Generate This Code:

The ECM detects the following conditions:
• The ECM is not receiving information about the ambient air temperature from the SAE J1587 data link.
The “Allow Idle Shutdown Override” is programmed to the J1587 Outside Temp Based option.

System Response:
The temperature based idle shutdown override is disabled. Outside air temperature is set to 65 C
(149 F).

Possible Performance Effect:
None

Troubleshooting:
Perform the following diagnostic procedure: “ATA (SAE J1587 / J1708) Data Link Circuit – Test”

Results:
• OK – STOP.

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