Toyota Tacoma (2015-2018) Service Manual: Front Differential Oil Temperature Sensor Circuit Low (P17C7)

Toyota Tacoma (2015-2018) Service Manual / Vf2cm Transfer / Touch Select 2-4 And High-low System / Front Differential Oil Temperature Sensor Circuit Low (P17C7)

DESCRIPTION

This DTC is output when a short to ground in the oil temperature sensor is detected.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
P17C7	Front Differential Oil Temperature Sensor Circuit Low	Diagnosis Condition: Ignition switch turned to ON Malfunction Status: Short to ground in the oil temperature sensor Malfunction Time: 1 second or more Other: 1 trip detection logic	Wire harness and connector 4 wheel drive control ECU Oil temperature sensor

WIRING DIAGRAM

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND OIL TEMPERATURE SENSOR - BODY GROUND)

(a) Disconnect the F13 4 wheel drive control ECU connector.

(b) Disconnect the F38 oil temperature sensor connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
F13-5 (DT) or F38-1 (DT) - Body ground	Always	10 kΩ or higher
F13-25 (DGND) or F38-2 (DGND) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.	INSPECT OIL TEMPERATURE SENSOR

(a) Disconnect the F38 oil temperature sensor connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 (DT) - 2 (DGND)	Always	120 to 240 kΩ

Text in Illustration

*a	Component without harness connected (Oil Temperature Sensor)

REPLACE 4 WHEEL DRIVE CONTROL ECU

REPLACE OIL TEMPERATURE SENSOR

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM DTC Code Detection Item See page P163B 4WD ECU Malfunction ...

Front Differential Oil Temperature Sensor Circuit High (P17C8)

DESCRIPTION This DTC is output when a short to B+ or open circuit in the oil temperature sensor is detected. DTC No. Detection Item DTC Detection Condition ...

Other materials:

Data List / Active Test
DATA LIST / ACTIVE TEST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. HINT: Using the Techstream to read the Data List allows the values or s ...

Removal
REMOVAL PROCEDURE 1. REMOVE FUEL TANK ASSEMBLY Click here 2. DISCONNECT FUEL TANK MAIN TUBE SUB-ASSEMBLY Click here 3. REMOVE FUEL PUMP GAUGE RETAINER NOTICE: Before performing these procedures, first cover the connectors and tube joints of the fuel suction tube with pump and gauge ass ...

Test Mode Procedure
TEST MODE PROCEDURE 1. TEST MODE (SIGNAL CHECK MODE) PROCEDURE HINT: When entering test mode (signal check mode), the tire pressure warning ECU and receiver stores all the test mode (signal check mode) DTCs first. After the tire pressure warning ECU and receiver completes the signa ...