DESCRIPTION The main body ECU (multiplex network body ECU) receives light control switch information signals and illuminates the low beam headlights. WIRING DIAGRAM 
CAUTION / NOTICE / HINT NOTICE: Inspect the bulbs and fuses for circuits related to this system before performing the following procedure. PROCEDURE
(a) Using the Techstream, perform the Active Test. Click here
OK: Headlight relay (H-LP LO) operates (low beam headlights turn on).
(a) Remove the headlight relay (H-LP LO) from the engine room relay block and junction block. (b) Inspect the headlight relay (H-LP LO). Click here
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
(a) Remove the headlight relay (H-LP LO) from the engine room relay block and junction block. (b) Disconnect the 3H driver side junction block assembly connector. (c) for Halogen Headlight: (1) Disconnect the A8 headlight assembly LH connector. (2) Disconnect the A9 headlight assembly RH connector. (d) for LED Headlight: (1) Disconnect the A59 headlight assembly LH connector. (2) Disconnect the A58 headlight assembly RH connector. (e) Measure the resistance according to the value(s) in the table below. Standard Resistance: for Halogen Headlight
(b) Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly. Click here (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Tundra Service Manual > Automatic Transmission System: Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT) (P2716)
DESCRIPTION Refer to DTC P0894 (See page ). DTC Code DTC Detection Condition Trouble Area P2716 Open or short is detected in the shift solenoid valve SLT circuit for 1 second or more while driving (1-trip detection logic). Open or short in shift solenoid valve SLT circuit Shift solenoid valve SLT EC ...
