P2619
DTC P2618 or P2619
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptors
DTC P2618
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Crankshaft Position Signal Output Circuit Low Voltage
DTC P2619
-
Crankshaft Position Signal Output Circuit High Voltage
Diagnostic Fault Information
Circuit/System Description
The engine control module (ECM) outputs a signal through an output driver that replicates the crankshaft position signal. This output signal is used for the power inverter module. The ECM monitors the electrical integrity of the crankshaft position output signal to check for the signal being shorted to ground or shorted to power.
Conditions for Running the DTC
P2618
* The ignition voltage is greater than 11.0 V.
* The engine is not cranking.
* The crankshaft position output is commanded high.
* The DTC runs continuously when the above conditions are met.
P2619
* The ignition voltage is greater than 11.0 V.
* The engine is not cranking.
* The crankshaft position output is commanded low.
* The DTC runs continuously when the above conditions are met.
Conditions for Setting the DTC
The ECM detects that the commanded state of the driver and the actual state of the control circuit do not match for greater than 5 s.
Action Taken When the DTC Sets
DTCs P2618 and P2619 are Type B DTCs.
Conditions for Clearing the DTC
DTCs P2618 and P2619 are Type B DTCs.
Reference Information
Schematic Reference
Engine Controls Schematics [1][2]Electrical Diagrams
Connector End View Reference
Component Connector End Views Hybrid/EV Battery Pack X1
Description and Operation
* Electronic Ignition System Description Description and Operation
* Hybrid Modes of Operation Description Hybrid Modes of Operation Description
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References Programming and Relearning for scan tool information
Circuit/System Verification
1. Engine running, observe the hybrid powertrain control module Engine Speed parameter with a scan tool. The reading should display an engine speed greater than 0 RPM.
2. Operate the vehicle within the conditions for running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the freeze frame/failure records data.
Circuit/System Testing
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure includes the following steps:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 15 meters (50 feet) of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves with leather protectors at all times when working with the high voltage battery assembly, whether the system is energized or not.
Failure to follow the procedures may result in serious injury or death.
1. Vehicle OFF, disable high voltage at the A4 hybrid/EV battery pack. Refer to High Voltage Disabling High Voltage Disabling.
2. Connect the 12 V battery.
3. Vehicle OFF, disconnect the X2 harness connector at the T6 power inverter module.
4. Vehicle in Service Mode, test for 0.04 V between the signal circuit terminal X2-5 and ground.
• If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K20 ECM.
• If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K20 ECM.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
Control Module References Programming and Relearning for ECM or hybrid powertrain control module setup, and programming