DESCRIPTION
When the transfer position switch is switched, the 2-4 terminal and LO terminal change to one of the following ON/OFF combinations listed in the table below.
Terminal |
2WD |
Between 2WD and H4 |
H4 |
Between H4 and L4 |
L4 |
---|---|---|---|---|---|
2-4 |
ON |
OFF |
ON |
OFF |
OFF |
LO |
OFF |
OFF |
ON |
OFF |
ON |
This DTC is detected if the transfer position switch 2-4 terminal and LO terminal signals are simultaneously received.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
P279E |
Four Wheel Drive (4WD) Range Signal Circuit Range / Performance |
|
|
WIRING DIAGRAM
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - TRANSFER POSITION SWITCH) |
(a) Disconnect the F13 4 wheel drive control ECU connector.
(b) Disconnect the F15 transfer position switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F13-14 (2-4) - F15-2 (2-4) |
Always |
Below 1 Ω |
F13-13 (LO) - F15-3 (LO) |
Always |
Below 1 Ω |
F15-5 (GND) - Body ground |
Always |
Below 1 Ω |
F13-14 (2-4) or F15-2 (2-4) - Body ground |
Always |
10 kΩ or higher |
F13-13 (LO) or F15-3 (LO) - Body ground |
Always |
10 kΩ or higher |
F13-14 (2-4) or F15-2 (2-4) - F13-13 (LO) or F15-3 (LO) |
Always |
10 kΩ or higher |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK TRANSFER POSITION SWITCH |
(a) Remove the transfer position switch with its connector still connected. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F15-2 (2-4) - Body ground |
Ignition switch ON 2WD position |
Below 1.5 V |
Ignition switch ON H4 position |
Below 1.5 V |
|
Ignition switch ON L4 position |
10 to 14 V |
|
F15-3 (LO) - Body ground |
Ignition switch ON 2WD position |
10 to 14 V |
Ignition switch ON H4 position |
Below 1.5 V |
|
Ignition switch ON L4 position |
Below 1.5 V |
*a |
Component with harness connected (Transfer Position Switch) |
OK |
REPLACE 4 WHEEL DRIVE CONTROL ECU |
NG |
REPLACE TRANSFER POSITION SWITCH |
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DESCRIPTION
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DTC No.
DTC Detection Condition
...