Toyota Tacoma manuals

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

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

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)

OK

REPLACE 4 WHEEL DRIVE CONTROL ECU

NG

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.

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

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

OK

REPLACE OIL TEMPERATURE SENSOR

NG

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:

Key Reminder Buzzer does not Sound
DESCRIPTION The key reminder warning buzzer sounds when the driver side door is opened while the ignition switch is in the LOCK or ACC positions. The key reminder warning buzzer is activated when the main body ECU (multiplex network body ECU) sends a key switch signal and driver side courtesy ...

Zero Point Calibration of Yaw Rate Sensor Undone (C1210,C1336)
DESCRIPTION The skid control ECU (master cylinder solenoid) receives signals from the yaw rate and acceleration (airbag sensor assembly) via the CAN communication system. The airbag sensor assembly has a built-in yaw rate and acceleration sensor and detects the vehicle's condition using 2 ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND DRIVER SIDE JUNCTION BLOCK (a) Disconnect the main body ECU (multiplex network body ECU) connectors. Text in Illustration *1 Main Body ECU (Multiplex Network Body ECU) - - ...

© 2011-2021 Copyright www.ttguide.net