Code PO604

SLLY1791

MEMBER
2007 CHEVROLET UPLANDER
3.9L
V6
2WD
AUTOMATIC
245,000 MILES

No crank, no start, starting disabled, reduced power. Code # P0604. Now showing service traction control. Did all four theft resets. Replaced battery cable ends, cleaned grounds, checked all fuses, checked all relays, changed oil.

Friday, June 23rd, 2017 AT 11:30 AM

1 Reply

MHPAUTOS

MECHANIC
31,937 POSTS

P0604 : Control Module Random Access Memory
Faulty Power train Control Module (PCM)
PCM harness is open or shorted
PCM circuit poor electrical connection
PCM Programming

Clear code and re try if code resets, you may have to get a dealer to re flash the PCM and if this fails you my be requiring a new PCM.