2010 Cadillac CTS Sedan AWD V6-3.6L Page 1436
Records on the scan tool.
Conditions for Clearing the DTC
* The DTC becomes history when the conditions for setting the DTC are no longer present.
* The history DTC clears after 40 malfunction-free warm-up cycles.
Diagnostic Aids
A partially filled fuel tank and filling the fuel tank with the ignition ON or engine RUNNING may cause an inaccurate or erratic fuel gauge. This
condition may cause a fuel system DTC to set and the fuel gauge to default to empty. Refer to Fuel Gauge Description and Operation (See:
Instrument Panel, Gauges and Warning Indicators/Description and Operation/Fuel Gauge).
Reference Information
Schematic Reference
Instrument Cluster Schematics (See: Diagrams/Electrical Diagrams/Instrument Panel, Gauges and Warning Indicators/System Diagram/Instrument
Cluster Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Fuel Gauge Description and Operation (See: Instrument Panel, Gauges and Warning Indicators/Description and Operation/Fuel Gauge)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit
Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Component Testing
1. Ignition OFF, remove the primary fuel level sender and verify there are no obstructions interfering with the fuel level sender.
瀚慖f any interference is present, repair the fuel sender interference.
2. Ignition OFF, disconnect the harness connector at the fuel level sensor.
3. While sweeping the primary fuel level sensor through its full range of motion, test for a minimum value less than 41 ohms and a maximum
value greater than 119 ohms between signal terminal 1 and the low reference terminal 4.
瀚慖f not within the specified range, replace the fuel level sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Fuel Level Sensor Replacement - Right Side (See: Powertrain Management/Computers and Control Systems/Fuel Level Sensor/Service and
Repair/Fuel Level Sensor Replacement - Right Side) for the 3.6L engine
* Fuel Level Sensor Replacement - Right Side (See: Powertrain Management/Computers and Control Systems/Fuel Level Sensor/Service and
Repair/Fuel Level Sensor Replacement - Right Side) for the 4.8L, 5.3L, 6.0L, 6.2L or 7.0L engine
* Control Module References (See: Testing and Inspection/Programming and Relearning) for the ECM replacement, setup, and programming
P0462
DTC P0462
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
