On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT HEADLIGHT DIMMER RELAY ![]() (a) Remove the headlight dimmer relay from the engine room relay box.
(c) Install the headlight dimmer relay to the engine room relay box. |
Toyota Tundra Service Manual > Sfi System: Startability Malfunction (P1604)
DESCRIPTION This DTC is stored when the engine does not start even though the STA signal is input or when the engine takes a long time to start, and when the engine speed is low or the engine stalls just after the engine starts. Using the Techstream, the conditions present when the DTC was stored ca ...