2010 Cadillac CTS Sedan AWD V6-3.6L Page 1011

2010 Cadillac CTS Sedan AWD V6-3.6L Page 1011

Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming

P0108

DTC P0107 or P0108 (w/LF1)

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provide an overview of each diagnostic category.

DTC Descriptors

DTC P0107

- Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage

DTC P0108

- Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage

Diagnostic Fault Information

Typical Scan Tool Data

Circuit Description

The manifold absolute pressure (MAP) sensor has a 5 V reference circuit, a low reference circuit, and a signal circuit. The engine control module

(ECM) supplies 5 V to the MAP sensor on the 5 V reference circuit, and provides a ground for the low reference circuit. The MAP sensor provides

a voltage signal to the ECM on the signal circuit relative to the intake manifold pressure changes.

Conditions for Running the DTC

* DTC P0697 is not set.

* The engine is running.

* This DTC runs continuously within the enabling conditions.

Conditions for Setting the DTC

P0107

The ECM detects that the MAP sensor voltage is less than 0.20 V for more than 5 s.

P0108

The ECM detects that the MAP sensor voltage is more than 4.80 V for more than 5 s.

Action Taken When the DTC Sets

DTCs P0107 and P0108 are Type B DTCs.