2010 Cadillac CTS Sedan AWD V6-3.6L Page 2004
3. Install a 3 A fused jumper wire between the signal circuit terminal A and ground. Verify the scan tool Fuel Level Sensor Left Tank voltage
parameter is at 0.0 V.
瀚慖f greater than the specified value, test the signal circuit for a high resistance. If the circuit tests normal, replace the ECM.
4. Install a 3 A fused jumper wire between the signal circuit terminal A and the low reference circuit terminal D. Verify the scan tool Fuel Level
Sensor Left Tank voltage parameter is at 0.0 V.
瀚慖f greater than the specified value, test the low reference circuit for a high resistance. If the circuit tests normal, replace the ECM.
5. Remove the fuel tank.
6. Remove the fuel tank primary and secondary fuel pump modules and inspect for the following conditions:
* A clogged secondary fuel strainer and pick up
* A clogged or restricted siphon jet pump
* Broken, clogged or restricted flex tubes, primary fuel tank module
* Broken, clogged, disconnected, or restricted fuel transfer tube inside tank
瀚慖f you find any of the above conditions, repair as necessary.
7. If all circuits/connections test normal, test or replace the left/secondary fuel level sensor.
Component Testing
1. Ignition OFF, remove the left fuel level sensor from the fuel tank.
2. Connect a DMM between terminal A and terminal D.
3. Verify the secondary fuel level sensor resistance remains within 40-250 ohm and changes smoothly while moving the float arm from stop to
stop.
瀚慖f not within the specified range or changes erratically while moving the float arm from stop to stop, replace the fuel level sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Fuel Tank Fuel Pump Module Replacement - Right Side (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Pump/Service
and Repair/Fuel Tank Fuel Pump Module Replacement - Right Side)
* Fuel Level Sensor Replacement - Left Side (See: Powertrain Management/Computers and Control Systems/Fuel Level Sensor/Service and
Repair/Fuel Level Sensor Replacement - Left Side)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for engine control module replacement, setup, and
programming
P2714
DTC P2714 or P2715
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) provides an overview of each diagnostic category.
DTC Descriptors
DTC P2714
- Clutch Pressure Control (PC) Solenoid 4 - Stuck Off
DTC P2715
- Clutch Pressure Control (PC) Solenoid 4 - Stuck On
Circuit/System Description
The clutch pressure control (PC) solenoid 4 is part of the control solenoid valve assembly, which has no serviceable parts. The PC solenoid 4
regulates transmission fluid pressure to the 2-6 clutch regulator valve which controls pressure to the 2-6 clutch. The TCM calculates gear ratio
based on the RPM signals from the input speed sensor (ISS) and the output speed sensor (OSS). The TCM compares the expected transmission gear
ratio to the calculated gear ratio for each commanded gear.
