DESCRIPTION When the A.D.D. actuator is switching between 2WD and 4WD, the DL1 and DL2 terminals of the limit switch are in one of the ON/OFF combinations listed in the table below.
This DTC is detected when the limit switch ON/OFF combination (2 lines) is abnormal.
WIRING DIAGRAM ![]() PROCEDURE
(a) Disconnect the A25 4 wheel drive control ECU connector. (b) Disconnect the G1 A.D.D. actuator (differential vacuum actuator assembly) connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
![]() (a) Disconnect the G1 A.D.D. actuator (differential vacuum actuator assembly) connector. (b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Tundra Service Manual > Front Power Seat Control System(w/ Memory): Dtc Check / Clear
DTC CHECK / CLEAR 1. CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / (desired system) / Trouble Codes. (e) Check for DTCs. 2. CLEAR DTC (a) Connect the Techstream to the DLC3. (b) Turn ...