2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1759

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1759

* This DTC runs continuously when the above conditions are met.

P0113

* DTCs P0101, P0102, P0103, P0116, P0117, P0118, P0125, P0128, P0722, P0723 are not set.

* The engine is running for greater than 10 s.

* The ECT is warmer than -40掳C (-40掳F).

* The MAF Sensor signal is equal to or greater than 512 g/s.

* This DTC runs continuously when the above conditions are met.

Conditions for Setting the DTC

P0112

The ECM detects that the IAT sensor signal is warmer than 149掳C (300掳F) for greater than 5 s.

P0113

The ECM detects that the IAT sensor signal is colder than -39掳C (-38掳F) for greater than 5 s.

Action Taken When the DTC Sets

DTCs P0112 and P0113 are Type B DTCs.

Conditions for Clearing the MIL/DTC

DTCs P0112 and P0113 are Type B DTCs.

Diagnostic Aids

* With the ignition ON, the engine OFF, if the engine is cold, a properly functioning IAT sensor will gradually increase the scan tool IAT

Sensor parameter. This is due to the heat that is generated by the mass air flow (MAF) sensor heating elements.

* Depending on the ambient temperature, an IAT sensor signal circuit or low reference circuit that is shorted to the MAF sensor signal circuit

can cause a DTC P0113 to set. This condition causes a rapid fluctuation in the IAT Sensor parameter.

* An IAT sensor signal circuit that is shorted to the MAF sensor ignition circuit can cause a DTC P0113 to set.

Reference Information

Schematic Reference

Engine Controls Schematics (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

1. Engine idling, observe the scan tool IAT Sensor parameter. The reading should be between -38 to +149掳C (-36 to +300F) depending on the

current ambient temperature and the vehicle operating conditions.

2. Operate the vehicle within the Conditions for Running the DTC to verify that the DTC does not reset. You may also operate the vehicle

within the conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing