I installed a Clifford Matrix 12.5X in my 99 Accord. It doesn't have factory alarm or immobilizer.
Everything worked fine for the first day until my buddy was testing out the shock sensor and I must have accidentally put it into Valet. At first I thought it was the immobilizer relay not closing, but I disconnected the harness and closed the circuit myself, still not starting.
Here's everything else I've posted over at HondaAccordForum.com:
"So I installed a Clifford Matrix 12.5X alarm the other day it's been working great, except today my buddy wanted to see how the shock sensor worked and set off the alarm, I disarmed it and left the car alone. I go to leave and when I turned the key nothing happened.
- You can hear the starter solenoid, but no starter.
- I have the immobilizer wired in, so I was thinking that the immobilizer relay went bad or something and not closing the starter circuit. So, after that I disconnected the alarm and tried to bypass the relay by just connecting the wires in the harness, technically reverting back to stock with the starter wire "intact".
- Didn't help, so I thought my battery might be dead as well so I had the buddy jump that car, still nothing, but I did get the starting to turn slowly for about 1 revolution (of the starter, not flywheel).
Here's the odd part, the status LED stays solid blue, and the car will lock and unlock, but it won't arm. Panic still works.
Any of you Clifford/Viper/Directed alarm owners know anything about this? I know most of you had yours installed, so you probably won't know much, but I'll try anyways."
and
"- Fixed the alarm LED problem: It was in valet mode which explains why it would not arm/disarm when it locked/unlocked. I must have hit Unlock-Aux-Unlock when my buddy set off the alarm.
- The 100A battery fuse is a-okay.
- I had my moms MDX hooked up with a brand new Optima Red Top under her hood charging mine for about 10 minutes. Same solenoid click, no start.
- The starter wire where I tapped the immobilizer in is in good shape and the splices are tight. All other wiring is tight too.
- I don't think it's my battery. It started strong all day and after sitting for 5 hours after the problem started, the headlights still were just as bright as when the car is on and my system still thumps at full volume during the tow home.
- Since jumping the immobilizer wiring to bypass the immobilizer relay still doesn't resolve the issue, I think I can safely rule out the alarm itself and look for issues in the starter signal wiring between the immobilizer and the starter itself. "