Toyota Tacoma (2015-2018) Service Manual: 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 |
|
|
WIRING DIAGRAM
Refer to DTC P17C7 (See page .gif)
).
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:
|
|
(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 |
|
*a |
Front view of wire harness connector (to 4 Wheel Drive Control ECU) |
| OK | .gif) |
REPLACE 4 WHEEL DRIVE CONTROL ECU |
|
.gif)
|
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:
Initialization
INITIALIZATION
1. INITIALIZE SLIDING ROOF SYSTEM
NOTICE:
Before starting this operation, make sure that the guide rails are not
deformed and there is no foreign matter on the guide rails.
When the sliding roof glass sub-assembly or sliding roof drive cable
sub-assembly is adju ...
Rear Differential Lock Solenoid Circuit Low (P17C0)
DESCRIPTION
This DTC is output when a malfunction is detected due to a short to ground occurring
in the differential lock coil drive circuit of the rear differential.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
P17C0
...
Disassembly
DISASSEMBLY
PROCEDURE
1. INSPECT CONNECTING ROD THRUST CLEARANCE
(a) Using a dial indicator, measure the thrust clearance while moving
the connecting rod back and forth.
Standard thrust clearance:
0.15 to 0.40 mm (0.00591 to 0.0157 in.)
Maximum thrust clearance:
0.50 ...
