Question about Toyota Cars & Trucks
After transmission rebuild in a 1999 toyota sienna, getting a lot of P codes. Tech bulletin TC002-03 identified resetting ecm after major engine and or transmission work for 00-04 years all models and sienna. Can the ecm be reset on a 1999 to clear all learned driving the ecm retains. This is not a code reset, this is a "reset the ecm" all memory saved information.
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Posted on Jan 02, 2017
SOURCE: Check Engine Light Reset
I don't subcribe to this idea personally but disconnecting the battery on that truck (negative cable) will clear the codes. There is no method for this vehicle (like the old GM's) to get the code meanings or #'s without at least a hand scanner. You can pick one up fairly inexpensively
Posted on Nov 04, 2008
You need to reset the light with a scan tool, the same one you used to read the code in the first place.
Posted on Apr 13, 2009
when you disconnect the negative battery terminal few munites , automatically resets ecm .
if connect battery and run engine and light goees on , you have to check sensors,connectios ,etc.
Posted on Apr 24, 2009
SOURCE: code 1346 on 2002 toyota sienna
P1346 is the code for:
VVT Sensor /Camshaft Position Sensor Circuit Range/ Performance Problem (Bank 1)
If the code came on just after the timing belt replacement more than likely the sensor was damged in some way during the work. The sensor is located in the same area the mechanic was working in while changeing the timing belt. You should have this checked right away. A faulty cam sensor can also lead to the vehicle not starting.
Posted on Sep 04, 2009
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