1999 Toyota Corolla Repair Question
Asked on June 18, 2012
Cranks but wont start- no check engine light at ign on, unable to link scanner
Replaced ecm, identical numbers, replaced crankshaft position sensor, no check engine light coming on at ignition on position, unable to link obd scanner so no codes, constantly says link error, no spark or fuel, efi fuse/relay checked, only have power to one of the terminals on both efi relay and efi fuse, from reading somewhere else on this forum i should have power to 2 on relay and fuse terminals Merlin 2021 was the expert but i am unable to get a hold of him-anyone else know the solution, i believe in merlin2021 post he had the solution to the wiring issue-please help
Answer
Replied on June 18, 2012
At data link connector check for voltage on Black wire pin #12 key on
Answered by
Docfixit (expert)
18,615 answers providedReplied on June 18, 2012
hi, just looked, only black and white- brown- white top row, red on bottom row- no power from any with key in on position, i just checked and got power to two of the efi relay terminals with relay removedm also rewd wire in obd connector gains power when efi relay is removed?
Response from
pobubba
1 question askedReplied on June 18, 2012
Check fuse Ignition switch in underdash box 7.5 amp
Answered by
Docfixit (expert)
18,615 answers provided
Replied on June 18, 2012
Docfixit, checked that fuse, its ok, all fuses in vehicle under dash checked out and all working
Response from
pobubba
1 question askedReplied on June 18, 2012
used or new computer??
if used, will not work as it has to be flashed to your vin.
if new, did you have it flashed??
can you get any info with a code reader??
Roy
Replied on June 19, 2012
OBD-II terminal # 16 must be hot at all times.
Answered by
KHLow2008 (expert)
40,318 answers provided
Replied on June 19, 2012
hi KHLow2008, no pins are hot unless i remove efi relay
Response from
pobubba
1 question askedReplied on June 19, 2012
That means you have a power supply failure to the pin.
Answered by
KHLow2008 (expert)
40,318 answers providedReplied on June 19, 2012
how do i find out what pin #16 is, is there a diagram available or what colour would the feed cable to the terminal be
Response from
pobubba
1 question askedReplied on June 19, 2012
At the narrower side of the connector, the end pin is # 16.
Answered by
KHLow2008 (expert)
40,318 answers provided 