94 Bonneville code P1361
drivera1
07-03-2003, 05:12 PM
I have a code P1361, checked the ignition control wiring and it looked ok, no broken wires or pins, changed the ignition control module and it still gives me a code P1361. Any other ideas??? thanks
pcv
07-04-2003, 08:21 AM
Are you mechanically inclined? This code has a bunch of tests you gotta do. It would be a good idea to take it to a reputable tech to diagnose the problem. If the wiring is good and you don't see any wires grounding, more than likely you may have a bad ignition module. That item is pricey, that is why yo need to get it checked. If you have means of getting / borrowing a used one, try it on and go from there.
P1361 will set when the following conditions are set;
1. Ignition circuit grounded during startup
2. PCM not commanding open or grounded by-pass circuit when vehicle is started.
If you need detailed tests I can post it here for you. Let me know and Good Luck.
P1361 will set when the following conditions are set;
1. Ignition circuit grounded during startup
2. PCM not commanding open or grounded by-pass circuit when vehicle is started.
If you need detailed tests I can post it here for you. Let me know and Good Luck.
drivera1
07-04-2003, 08:45 AM
I already replaced the IC module, checked the wiring around the engine for broken or grounded, it looked ok. I get Electronic spark timing signal not switching after enable on my Autoxray. Only thing else I can think of is the PCM is bad. I would hate to repalce it if its not. Detailed test would be appreciated....thanks
pcv
07-04-2003, 04:41 PM
Here goes;
1. Clear codes and idle engine for 3 minutes. Does the mil light lite up?
In not, code is intermittent.
2. If yes, unplug the red PCM connector ( it should have RB16 stamped on it and has a white wire terminal. This wire goes to module terminal A). Ignition on. Is resistance from PCM ic harness to ground below 200 ohms?
If less than 200 ohms is not shown, problem is open ic circuit, poor connection at module or faulty module.
3. If resistance is below 200 ohms, connect a test lite betweem PCM harness RB15 ( next to RB16) and battery voltage. Is the lite off?
If test light is on, unplug ignition module. If light is on, check for short to ground in harness. If lite is off, ignition module is faulty.
4. If test lite is off, with test lite still between PCM harness RB15 terminal and battery voltage. Note resistance between ic harness terminal and ground.
If resistance is over 5000 ohms, turn ignition off. Reconnect PCM. Start and idle engine for 3 minutes. If code resets, PCM is bad. If not check for poor connections.
5. If resistance is not over 5000 ohms, turn ignition off. unplug module. check resistance between ground and PCM harness ignition (RB16)control terminal. Is resistance infinite?).
If not infinite, ic circuit is shoted to ground.
6. If resistance is infinite, check for open in RB15 circuit or poor module connection. If If okay, module is faulty.
I hope this will help you. I'll be watching this thread. Good Luck.
1. Clear codes and idle engine for 3 minutes. Does the mil light lite up?
In not, code is intermittent.
2. If yes, unplug the red PCM connector ( it should have RB16 stamped on it and has a white wire terminal. This wire goes to module terminal A). Ignition on. Is resistance from PCM ic harness to ground below 200 ohms?
If less than 200 ohms is not shown, problem is open ic circuit, poor connection at module or faulty module.
3. If resistance is below 200 ohms, connect a test lite betweem PCM harness RB15 ( next to RB16) and battery voltage. Is the lite off?
If test light is on, unplug ignition module. If light is on, check for short to ground in harness. If lite is off, ignition module is faulty.
4. If test lite is off, with test lite still between PCM harness RB15 terminal and battery voltage. Note resistance between ic harness terminal and ground.
If resistance is over 5000 ohms, turn ignition off. Reconnect PCM. Start and idle engine for 3 minutes. If code resets, PCM is bad. If not check for poor connections.
5. If resistance is not over 5000 ohms, turn ignition off. unplug module. check resistance between ground and PCM harness ignition (RB16)control terminal. Is resistance infinite?).
If not infinite, ic circuit is shoted to ground.
6. If resistance is infinite, check for open in RB15 circuit or poor module connection. If If okay, module is faulty.
I hope this will help you. I'll be watching this thread. Good Luck.
drivera1
07-24-2003, 05:33 AM
PCV thanks for the help, it ended up being that the PCM was faulty.
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