P0196-ENGINE OIL TEMPERATURE SENSOR PERFORMANCE

For a complete wiring diagram Refer to Section 8W

When Monitored:
The engine oil temperature has dropped below a calibrated value. Engine start up.
Set Condition:
The Engine Oil temperature rises faster than a calibrated modeled temperature. When the actual oil temperature exceeds the calibrated modeled temperature for 3 minutes the fault is set.

Possible Causes

INTERMITTENT DTC

(G24) EOT SIGNAL CIRCUIT SHORTED TO VOLTAGE

(G24) EOT SIGNAL CIRCUIT SHORTED TO GROUND

(G24) EOT SIGNAL CIRCUIT SHORTED TO (K915) SENSOR GROUND CIRCUIT

(G24) EOT SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE

(K915) SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE

ENGINE OIL TEMPERATURE SENSOR

POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - STANDARD PROCEDURE)

Diagnostic Test

1.DTC IS ACTIVE

NOTE: Diagnose any CAN - C Communication DTCs before continuing.

Is the status Active or Pending for this DTC?

Yes

Go To 2

Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

2.ENGINE OIL

OEM recommended oil viscosity is being used.
Customer is following the oil change schedule.
Check the engine oil for contamination. (i.e., fuel and/or engine coolant)
Internal engine condition that may effect oil pressure.

Were any of the above conditions found?

Yes

Repair as necessary.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)

Go to 3

3.(G24) EOT SIGNAL CIRCUIT SHORTED TO VOLTAGE

Is there any voltage present?

Yes

Repair the (G24) EOT Signal circuit for a short to voltage.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - STANDARD PROCEDURE).

Go to 4

4.(G24) EOT SIGNAL CIRCUIT SHORTED TO GROUND

Is the resistance above 100 ohms?

Yes

Go to 5

Repair the (G24) EOT Signal circuit for a short to ground.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - STANDARD PROCEDURE).

5.(G24) EOT SIGNAL CIRCUIT SHORTED TO (K915) SENSOR GROUND CIRCUIT

Is the resistance above 100 ohms?

Yes

Go to 6

Repair the (G24) EOT Signal circuit for a short to the (K915) Sensor Ground circuit.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - STANDARD PROCEDURE).

6.(G24) EOT SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE

Is the resistance below 5.0 ohms?

Yes

Go to 7

Repair the (G24) EOT Signal circuit for an open circuit or high resistance.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - STANDARD PROCEDURE).

7.(K915) SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE

Is the resistance below 5.0 ohms?

Yes

Go to 8

Repair the (K915) Sensor Ground for an open circuit or high resistance.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - STANDARD PROCEDURE).

8.ENGINE OIL TEMPERATURE SENSOR

Is the voltage below 1.0 volt with the jumper wire in place?

Yes

Replace the Engine Oil Temperature Sensor in accordance with the Service Information.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - STANDARD PROCEDURE).

Go to 9

9.POWERTRAIN CONTROL MODULE (PCM)

Were any problems found?

Yes

Repair as necessary.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - STANDARD PROCEDURE).

Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - STANDARD PROCEDURE).