2003 Safari Same stupid truck: viewtopic.php?f=62&t=8770 This started this today. I can not use the driver door lock/unlock switch to lock or unlock any of the doors when exiting once the motor is off and radio turns off (automatically when door opens). Its like the driver's lock/unlock switch i...

Update: I had a Tech2 check the BCM (and try a re-program), this is the result: B2618 Passenger Compartment Dimming 2 Circuit High I check the signal from the courtesy light switch to the BCM and it was good, however at the component level on the BCM two transistors seem to be blocking the signal fr...

In another thread I am having whoes with my BCM in 2003 safari, :canuk: I finally took it to a GM dealer, the mechanic said my BCM cannot be flashed because it doesn't use prom's. I don't know why he'd say that?? I know my BCM is used in the US where the headlight disable is an "option", a...

Door switches: The door "ajar" light never comes on, BUT, when the keys are left in the ignition and driver door is opened, the "keys reminder" chime pings. I'm stumped !! I checked every wire input to the computer. Every door switch, dome over-ride, courtesy/dim switch. I mapped...

Nothing happened with pressing button in/out. I think I read that feature is disabled in :canuk: . I may have made a break through in finding the 16221256 relay driver chip. After days of googling and checking every link, and anti-virus tripping everytime I looked at okdatasheet,com site. I believe ...

Please tell me how the headlight over ride button sequence is done, i'd like to see if it works . Thankyou for the diagrams, but they don't show inside BCM. Turns out cpu is 100 pin, and might be texas instruments. The cpu does have "(C) 1998 TI" on it, so, maybe. Anyone see any patent num...

What I need is the computer's schematic. I can offer some compensation for copy charges or postage, but a scan or pdf is better. Still worthy of some compensation for pressing "send". Nudge-nudge, wink-wink... Free download links of course would also be welcome and appreciated !! Please he...

But shouldn't the over-ride switch also turn them on??

BTW. Do the radio button light up and fade/bal/bass etc letters???

2003 safari van, is 1-week new to me, problem: computer will not enable "courtesy lamp relay" to turn on interior lights relay. grey/blk wire, blue plug c2, pin A3 (at computer) will not "ground" to enable relay. gry/blk when manually grounded at computer plug enables relay, so &...