Buick Regal: DTC P1100
Diagnostic Instructions
- Perform the Diagnostic System Check prior to using this diagnostic procedure:Diagnostic System Check - Vehicle
- Review the description of Strategy Based Diagnosis:Strategy Based Diagnosis
- An overview of each diagnostic category can be found here:Diagnostic Procedure Instructions
DTC Descriptor
Fuel Level Sensor 2 Signal Message Counter Incorrect
Circuit/System Description
The signal circuit is connected to the following control module: K111 Fuel Pump Driver Control Module
The control module communicates with the engine control module via serial data.
Conditions for Running the DTC
Ignition - On / Vehicle - In Service Mode
Conditions for Setting the DTC
K20 Engine Control Module = K111 Fuel Pump Driver Control Module - Message Counter Incorrect
Actions Taken When the DTC Sets
DTCs listed in the DTC Descriptor Category = Type B DTC
Conditions for Clearing the DTC
DTCs listed in the DTC Descriptor Category = Type B DTC
Reference Information
Connector End View Reference
COMPONENT CONNECTOR END VIEW INDEX
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References
Circuit/System Verification
1. Ignition - On / Vehicle - In Service Mode.
2. Verify no other DTCs are set.
- If other DTCs are set
Refer to:Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If no other DTCs are set
3. Replace the component: K111 Fuel Pump Driver Control Module.
4. Verify the DTC does not set.
- If the DTC is set
Replace the component: K20 Engine Control Module.
- Go to next step: If the DTC is not set
5. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification.
For control module replacement, programming, and setup refer to: Control Module References.
DTC P1200
Diagnostic Instructions
- Perform the Diagnostic System Check prior to using this diagnostic procedure:Diagnostic System Check - Vehicle
- Review the description of Strategy Based Diagnosis:Strategy Based Diagnosis
- An overview of each diagnostic category can be found here:Diagnostic Procedure Instructions
DTC Descriptor
Fuel Level Sensor 1 Signal Message Counter Incorrect
Circuit/System Description
The signal circuit is connected to the following control module: K111 Fuel Pump Driver Control Module The control module communicates with the engine control module via serial data.
Conditions for Running the DTC
Ignition - On / Vehicle - In Service Mode
Conditions for Setting the DTC
K20 Engine Control Module = K111 Fuel Pump Driver Control Module - Message Counter Incorrect
Actions Taken When the DTC Sets
DTCs listed in the DTC Descriptor Category = Type B DTC
Conditions for Clearing the DTC
DTCs listed in the DTC Descriptor Category = Type B DTC
Reference Information
Connector End View Reference
COMPONENT CONNECTOR END VIEW INDEX
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References
Circuit/System Verification
1. Ignition - On / Vehicle - In Service Mode
2. Verify no other DTCs are set.
- If other DTCs are set
Refer to:Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If no other DTCs are set
3. Replace the component: K111 Fuel Pump Driver Control Module.
4. Verify the DTC does not set.
- If the DTC is set
Replace the component: K20 Engine Control Module
- Go to next step: If the DTC is not set
5. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification.
For control module replacement, programming, and setup refer to: Control Module References.
READ NEXT:
DTC P1434
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure:Diagnostic System
Check - Vehicle
Review the description of Strategy Based Diagnosis:Strategy
DTC P250A
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
Symptoms - Displays and Gauges
NOTE: The following steps must be completed before using the symptom
diagnostic tables.
1. Before using the symptom diagnostic tables, perform the Diagnostic System
Check - Vehicle in
order to determ
SEE MORE:
Engine Compartment Fuse
Block
To remove the fuse block cover,
squeeze the three retaining clips on
the cover and lift it straight up.
Caution:
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the
covers on any electrical
component.
The vehicle may not be equipped
with all of the fuses, rel
Reclining Seatbacks
Warning:
Sitting in a reclined position when
the vehicle is in motion can be
dangerous. Even when buckled
up, the seat belts cannot do
their job.
The shoulder belt will not be
against your body. Instead, it will
be in front of you. In a crash, you
could go into it, receiving neck or
other injuries.
