DESCRIPTION
When the transfer switches modes, the TL1, TL2 and TL3 terminals of the limit switch are in one of the ON/OFF combinations listed in the table below.
Terminal |
When 2WD |
Switching between 2WD and H4 |
When H4 |
Switching between H4 and L4 |
When L4 |
---|---|---|---|---|---|
TL1 |
ON (GND) |
ON (GND) |
OFF (OPEN) |
OFF (OPEN) |
OFF (OPEN) |
TL2 |
OFF (OPEN) |
OFF (OPEN) |
OFF (OPEN) |
ON (GND) |
ON (GND) |
TL3 |
OFF (OPEN) |
ON (GND) |
ON (GND) |
ON (GND) |
OFF (OPEN) |
A malfunction is detected depending on the combination of the 3 circuits that make up the limit switch of the transfer shift actuator assembly.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
P17AC |
Transfer Shift Motor Limit Switch Circuit |
|
|
WIRING DIAGRAM
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - TRANSFER SHIFT ACTUATOR ASSEMBLY) |
(a) Disconnect the F13 4 wheel drive control ECU connector.
(b) Disconnect the T4 transfer shift actuator assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F13-11 (TL1) - T4-3 (TL1) |
Always |
Below 1 Ω |
F13-10 (TL2) - T4-4 (TL2) |
Always |
Below 1 Ω |
F13-9 (TL3) - T4-5 (TL3) |
Always |
Below 1 Ω |
T4-6 (GND1) - Body ground |
Always |
Below 1 Ω |
F13-11 (TL1) or T4-3 (TL1) - Body ground |
Always |
10 kΩ or higher |
F13-10 (TL2) or T4-4 (TL2) - Body ground |
Always |
10 kΩ or higher |
F13-9 (TL3) or T4-5 (TL3) - Body ground |
Always |
10 kΩ or higher |
F13-11 (TL1) - T4-4 (TL2) and T4-5 (TL3) |
Always |
10 kΩ or higher |
F13-10 (TL2) - T4-3 (TL1) and T4-5 (TL3) |
Always |
10 kΩ or higher |
F13-9 (TL3) - T4-3 (TL1) and T4-4 (TL2) |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK 4 WHEEL DRIVE CONTROL ECU (ECU OUTPUT VOLTAGE) |
(a) Disconnect the transfer shift actuator assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
T4-3 (TL1) - Body ground |
Ignition switch ON |
10 to 14 V |
T4-4 (TL2) - Body ground |
Ignition switch ON |
10 to 14 V |
T4-5 (TL3) - Body ground |
Ignition switch ON |
10 to 14 V |
*a |
Front view of wire harness connector (to Transfer Shift Actuator Assembly) |
OK | ![]() |
REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY |
NG | ![]() |
REPLACE 4 WHEEL DRIVE CONTROL ECU |
Front Passenger Side Power Window does not Operate with Front Passenger Side
Power Window Switch
DESCRIPTION
When the engine is running or the ignition switch is ON, the front power window
regulator motor assembly RH is operated by the front power window regulator switch
assembly RH. The front power window regulator motor assembly RH has motor, regulator,
and ECU functions.
HINT:
If th ...
Initialization
INITIALIZATION
NOTICE:
Initialization can only be performed for vehicles with a tire pressure
warning reset switch.
If initialization is performed, the existing tire positions will be
cleared, but will be automatically identified when the vehicle is driven
at 37 km/h (23 mp ...
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle towed by your Toyota
dealer or a commercial towing service, using a lift-type truck or a flat bed truck.
Use a safety chain system for all towing, and abide by all state/provincial and
local laws.
The wheels and axle on the ground must b ...