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.
