Toyota Tacoma (2015-2018) Service Manual: Front Differential Oil Temperature Sensor Circuit High (P17C8)

Toyota Tacoma (2015-2018) Service Manual / Vf2cm Transfer / Touch Select 2-4 And High-low System / 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	Trouble Area
P17C8	Front Differential Oil Temperature Sensor Circuit High	Diagnosis Condition: Ignition switch turned to ON Malfunction Status: Short to B+ or open circuit 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

Refer to DTC P17C7 (See page PROCEDURE ).

PROCEDURE

1.	CHECK OIL TEMPERATURE SENSOR

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

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
F13-5 (DT) - F13-25 (DGND)	Always	120 to 240 kΩ

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
F13-5 (DT) or F13-25 (DGND) - Body ground	Ignition switch ON	Below 1 V

Text in Illustration

*a	Front view of wire harness connector (to 4 Wheel Drive Control ECU)

REPLACE 4 WHEEL DRIVE CONTROL ECU

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

(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) - F38-1 (DT)	Always	Below 1 Ω
F13-25 (DGND) - F38-2 (DGND)	Always	Below 1 Ω

(d) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
F13-5 (DT) or F38-1 (DT) - Body ground	Ignition switch ON	Below 1 V
F13-25 (DGND) or F38-2 (DGND) - Body ground	Ignition switch ON	Below 1 V

REPLACE OIL TEMPERATURE SENSOR

REPAIR OR REPLACE HARNESS OR CONNECTOR

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 Ar ...

Four Wheel Drive (4WD) Low Switch Circuit Range / Performance (P2772)

DESCRIPTION This DTC is output when a malfunction in the L4 detection switch is detected. DTC No. Detection Item DTC Detection Condition Trouble Area ...

Other materials:

Installation
INSTALLATION PROCEDURE 1. INSTALL FRONT NO. 2 SPEAKER ASSEMBLY RH (a) Connect the connector. (b) Install the front No. 2 speaker assembly RH with the 2 bolts. Torque: 8.4 N·m {86 kgf·cm, 74 in·lbf} NOTICE: Do not touch the cone part of the front No. 2 speaker assembly RH. ...

Interior
*1: If equipped * 2: Access Cab and Double Cab models *3: Vehicles with auto anti- glare inside rear view mirror *1: If equipped *2: Vehicles with an automatic transmission * : If equipped * 1: If equipped * 2: Vehicles with sub woofer ...

No Response from Steering Lock ECU (B2786)
DESCRIPTION This DTC is stored when LIN communication between the certification ECU (smart key ECU assembly) and steering lock ECU (steering lock actuator or upper bracket assembly) stops for 10 seconds or more. DTC No. DTC Detection Condition Trouble Area ...