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:

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each sy ...

Touch Panel Switch does not Function
PROCEDURE 1. CHECK MULTI-DISPLAY (a) Check if there is any foreign matter caught between the display and exterior frame of the multi-display. OK: No foreign matter is caught between the display and exterior frame of the multi-display. HINT: If there is foreig ...

Communication Malfunction between ECUs Connected by LIN (B2785)
DESCRIPTION The certification ECU (smart key ECU assembly) monitors communication between all the ECUs connected to the certification bus lines. When the certification ECU (smart key ECU assembly) detects errors in communication with all the ECUs connected to the certification bus lines at a ...