Toyota Tacoma manuals

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

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.

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

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

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

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)

OK

REPLACE 4 WHEEL DRIVE CONTROL ECU

NG

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)
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Other materials:

Removal
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Inspection
INSPECTION PROCEDURE 1. INSPECT BRAKE CYLINDER AND PISTON (a) Check the cylinder bore and piston for rust and scoring. 2. INSPECT PAD LINING THICKNESS (a) Using a ruler, measure the pad lining thickness. Standard thickness: 11.5 mm (0.453 in.) Minimum thickness: 1.0 mm (0.0394 in.) ...

Maintenance data (fuel, oil level, etc.)
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