DTC P0196-P0199 (L82, L84, L87)

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 DTC P0196 Engine Oil Temperature Sensor Performance DTC P0197 Engine Oil Temperature Sensor Circuit Low Voltage DTC P0198 Engine Oil Temperature Sensor Circuit High Voltage DTC P0199 Engine Oil Temperature Sensor Erratic Diagnostic Fault Information

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performanc
5 V Reference	P0522, P0197	P0522, P0197 or 1	P0523, P0198	—
Signal	P0197	P0198 or 1	P0198	P0199 or 1
Low Reference	—	P0523, P0198 or 1	—	—
Temperature Indicator = Malfunction

Circuit/System Description For an overview of the component/system, refer to: Instrument Cluster Description and Operation

Circuit	Description
5 V Reference	Regulated voltage supplied by the control module.
Signal	The control module input circuit has an internal resistance connected to ground.
Low Reference	Grounded through the control module.

Component	Description
B37B Engine Oil Pressure Sensor	The sensor is a capacitive pressure transducer. Electronics in the sensor convert pressure into an analog voltage signal.
K20 Engine Control Module	The K20 control module monitors the Engine Oil Temperature Sensor 2 circuit.The control module input circuit has an internal resistance connected to ground.

Conditions for Running the DTC Engine Running Conditions for Setting the DTC P0196 Engine Oil Temperature Sensor Circuit = The actual value is not within a predetermined range of the calculated value — P0197 Engine Oil Temperature Sensor Circuit = Less than 0.2 V — For greater than 10 s P0198 Engine Oil Temperature Sensor Circuit = Greater than 4.8 V — For greater than 10 s P0199 Engine Oil Temperature Sensor Circuit = Signal Erratic — Action Taken When the DTC Sets Type C DTC Temperature Indicator = On Conditions for Clearing the DTC DTCs listed in the DTC Descriptor category = Type C DTC Reference Information Schematic Reference Instrument Cluster Schematics Connector End View Reference Master Electrical Component List Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs DTC Type Reference Powertrain Diagnostic Trouble Code (DTC) Type Definitions Scan Tool Reference Control Module References Circuit/System Verification

1. Ignition » On / Vehicle » In Service Mode
2. Verify the scan tool parameter: Engine Oil Temperature Sensor = -39 to 120°C (-38 to 248°F) and changes ⇒ If not the specified state Refer to: Circuit/System Testing ⇓ If the specified state
3. Operate the vehicle within the Conditions for Running the DTC.
4. Verify the DTC does not set. ⇒ If the DTC sets Refer to: Circuit/System Testing ⇓ If the DTC does not set
5. All OK. Circuit/System Testing

Note

It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.

1. Ignition/Vehicle & All vehicle systems » Off
2. Disconnect the electrical connector: B37B Engine Oil Pressure Sensor
3. Test for less than 10 Ω between the test points: Low Reference circuit terminal 1 & Ground ⇒ If 10 Ω or greater 3.1. Disconnect the electrical connector: K20 Engine Control Module 3.2. Test for less than 2 Ω between the test points: Low Reference circuit terminal 1 @ Component harness & The other end of the circuit ⇒ If 2 Ω or greater » Repair the open/high resistance in the circuit. ⇒ If less than 2 Ω » Replace the component: K20 Engine Control Module ⇓ If less than 10 Ω
4. Ignition » On / Vehicle » In Service Mode
5. Test for 4.8 to 5.2 V between the test points: 5 V Reference circuit terminal 3 & Low Reference circuit terminal 1 ⇒ If less than 4.8 V 5.1. Ignition/Vehicle » Off 5.2. Disconnect the electrical connector: K20 Engine Control Module 5.3. Test for infinite resistance between the test points: 5 V Reference circuit terminal 3 @ Component harness & Ground ⇒ If less than infinite resistance » Repair the short to ground on the circuit. ⇓ If infinite resistance 5.4. Test for less than 2 Ω between the test points: 5 V Reference circuit terminal 3 @ Component harness & The other end of the circuit ⇒ If 2 Ω or greater » Repair the open/high resistance in the circuit. ⇒ If less than 2 Ω » Replace the component: K20 Engine Control Module ⇒ If greater than 5.2 V 5.1. Ignition/Vehicle » Off 5.2. Disconnect the electrical connector: K20 Engine Control Module 5.3. Ignition » On / Vehicle » In Service Mode 5.4. Test for less than 1 V between the test points: 5 V Reference circuit terminal 3 @ Component harness & Ground ⇒ If 1 V or greater » Repair the short to voltage on the circuit. ⇒ If less than 1 V » Replace the component: K20 Engine Control Module ⇓ If between 4.8 and 5.2 V
6. Verify the scan tool parameter: Engine Oil Temperature Sensor = Colder than -30°C (-22°F) ⇒ If -29°C (-20°F) or warmer 6.1. Ignition/Vehicle » Off 6.2. Disconnect the electrical connector: K20 Engine Control Module 6.3. Ignition » On / Vehicle » In Service Mode 6.4. Test for less than 1 V between the test points: Signal circuit terminal 4 @ Component harness & Ground ⇒ If 1 V or greater » Repair the short to voltage on the circuit. ⇒ If less than 1 V » Replace the component: K20 Engine Control Module ⇓ If -30°C (-22°F) or colder
7. Connect a 3 A fused jumper wire between the test points: Signal circuit terminal 4 & 5 V Reference circuit terminal 3
8. Verify the scan tool parameter: Engine Oil Temperature Sensor = Greater than 130°C (266°F) ⇒ If 129°C (265°F) or colder 8.1. Ignition/Vehicle » Off & Remove » Jumper wire(s) 8.2. Disconnect the electrical connector: K20 Engine Control Module 8.3. Test for infinite resistance between the test points: Signal circuit terminal 4 @ Component harness & Ground ⇒ If less than infinite resistance » Repair the short to ground on the circuit. ⇓ If infinite resistance 8.4. Test for less than 2 Ω between the test points: Signal circuit terminal 4 @ Component harness & The other end of the circuit ⇒ If 2 Ω or greater » Repair the open/high resistance in the circuit. ⇒ If less than 2 Ω » Replace the component: K20 Engine Control Module ⇓ If 130°C (266°F) or warmer
9. Test or replace the component: B37B Engine Oil Pressure Sensor Repair Instructions Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification Displays and Gauges Component Replacement Reference For control module replacement, programming, and setup refer to: Control Module References