Electrical intermittant problem

NO YEAR TOLD wow. 1995 to 2008 and no country told
2.9L petol engine 2.9 L V6 (aka 3L)
weak car battery? not 13.3 to 15vdc running means
bad alternator it its own fuse blown!
battery cable lugs all 4 ends not loose or rusty.
fuses check all fuses first.
if battery goes weak driving and a bad ALTerator.(ALT)
the voltage falls and computers on board fail or go wacky(chaos)
at 10vdc this can and does happen and the PCM and BCM both.

I call low voltage at the battery or bad fuses.
did you know that huge battery can be also intermittent"
good /bad/weak or wildly intermittent it sure can.!!!!!
so can too, the alternator.
a shop checks all that and more!@ load tests too.

they use the scan tool too, and it may tell you what is wrong.
i guess com2000 is the Peugeot BCM body computer
and it needs 2 things to work clean 12vdc power (fuses and ALT)
it need to communicate to other things, like PCM.
or fails. scan it next. look for comm errors
and more.

Hi Jim. I recommend checking the electrical portion of the ignition switch. It is responsible for supplying power to many consumers, and is known for causing mysterious air bag lights and 4x4 lights. The switch is relatively inexpensive and not very difficult to replace.

An electrical short in the wire harness

94+ AIR BAG DIAGNOSTIC TROUBLE CODES/CLEARING
Code Component/Fault Description

No Air Bag Indicator - Inoperative Indicator Circuit
Continuous Air Bag Indicator - Diagnostic Trouble Code Timed Out, Diagnostic Monitor Disconnected or Inoperative, or No Ignition Voltage to Diagnostic Monitor.
12 Lost Battery Feed
13 Air Bag Circuit Shorted to Ground
14 Primary Crash Sensor Circuit Shorted to Ground
21 Diagnostic Monitor Not Mounted to Vehicle Properly
22 Safing Sensor Output Circuit Shorted to Battery Voltage
23 Memory Clear Circuit Improperly Grounded
24 System Disarm Failure or Internal Diagnostic Monitor Fault
32 Driver Side Air Bag Circuit High Resistance or Open
33 Passenger Side Air Bag Circuit High Resistance or Open
34 Driver Side Air Bag Circuit Low Resistance or Shorted
35 Passenger Side Air Bag Circuit Low Resistance or Shorted
41 RH Radiator Primary Crash Sensor Feed/Return Circuit Open
42 LH Radiator Primary Crash Sensor Feed/Return Circuit Open
44 RH Radiator Primary Crash Sensor Not Mounted to Vehicle Properly
45 LH Radiator Primary Crash Sensor Not Mounted to Vehicle Properly
52 Intermittent or Repaired Lost Battery Feed
53 Intermittent or Repaired Air Bag Circuit Shorted to Ground
54 Intermittent or Repaired Primary Crash Sensor Circuit Shorted to Ground
61 Intermittent or Repaired Diagnostic Monitor Not Mounted to Vehicle Properly
62 Intermittent or Repaired Safing Sensor Output Circuit Shorted to Battery Voltage
63 Intermittent or Repaired Memory Clear Circuit Improperly Grounded
64 Intermittent or Repaired System Disarm Failure or Internal Diagnostic Monitor Fault
72 Intermittent or Repaired Driver Side Air Bag Circuit High Resistance or Open
73 Intermittent or Repaired Passenger Side Air Bag Circuit High Resistance or Open
74 Intermittent or Repaired Driver Side Air Bag Circuit Low Resistance or Shorted
75 Intermittent or Repaired Passenger Side Air Bag Circuit Low Resistance or Shorted
81 Intermittent or Repaired RH Radiator Primary Crash Sensor Feed/Return Circuit Open
82 Intermittent or Repaired LH Radiator Primary Crash Sensor Feed/Return Circuit Open
84 Intermittent or Repaired RH Radiator Primary Crash Sensor Not Mounted to Vehicle
85 Intermittent or Repaired LH Radiator Primary Crash Sensor Not Mounted to Vehicle
Rapid Continuous Flashing of Air Bag Indicator (No Diagnostic Trouble Code) Both Primary Crash Sensors Disconnected Assembly Plant Mode

TROUBLE CODE CLEARING

1. Follow the diagnostic procedures to service the fault condition flashing on the air bag indicator prior to code clearing.

2. Cycle the ignition switch to OFF and then to RUN.

3. Observe air bag indicator prove-out (six ? two seconds) followed by diagnostic trouble code (52-85) flashing completely one time.

4. Locate the Diagnostic "Trouble Code Clear" Connector (grey connector). located underneath the glove compartment, left side (06010) containing Circuits 631 (T/R) and 57 (BK).

5. Use a jumper wire to short Circuit 631 (T/R) to Circuit 57 (BK) or to another good ground. This short must be made after the diagnostic trouble code flashes completely one time, but before the warning light stays on continuously.

6. Hold short until air bag diagnostic monitor tone sounds (approximately five seconds).

7. Release short on Circuit 631 (T/R) to Circuit 57 (BK). This short must be released within 25 seconds after the diagnostic monitor tone sounds.

Diagnostic trouble code is now cleared from memory. Next highest priority diagnostic trouble code stored (if one exists) will begin flashing.

The codes and clearing proceedure above are to be used as a guide, NO claims are implied as to the correctness or accuracy of either.

all the above.

i cant see lamp, why not use photos so we dont need to guess, 1000 warning lamps used.

varies by country too. what lamp logos look like.



what it is , who knows? right, lacking a photo.

the key switch tells the warning box when you remove the key.

that buzz left in is the warning, take key out now.

seem the key inserted switch is stuck but id have to see lamp.

so yes that is switch not a sensor, (but sure one could call a switch a sensor.) and sure wires can fail. and connectors.

sure its electric, is sure is not vacuum.



the warning box can worn head lights left on

or exiting car key left in ignition.

do not fool with the key switch on air bag cars or risk death or broken neck with AIR BAGS.

read the manual, see the 1000 warning there.

and the words, DEFEAT the bags using X procedures first.

do so.

Sounds like a bad connection where the harness plugs into the back of the cluster, or a solder connection on the printed circuit board.

What's to help ? Do you know how to test electrical circuits ? Using a DVOM - digital volt ohm meter an electrical wiring diagrams , test power an ground circuits . Find wirng diagrams here http://www.bbbind.com/free_tsb.html Watch these videos on electrical testing Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
How to Use Multimeter to Troubleshoot Common Problems YouTube
Check for DTC'S - diagnostic trouble codes .
Electric Testing Techniques You Need to Know
There are no magical fix's for automotive electrical problems , testing for B+ voltage an good grounds .

1. Run codes for the air bag light. This is a hard fault and must be remedied to make the light go out. Nothing you do in the fuse box will fix this.

2. Intermittent interior lights are most likely to be caused by bad door jamb switches. And again nothing you do in the fuse box will fix this.

Hope this was of help.

Your grounding somewhere. Start looking at the starter. Good luck.

Sounds like an air bag problem. You will not be able to reset the light without fixing the problem. The steering wheel airbag electrical contact is suspect. Airbag will have to be removed and problem repaired. . I do not recommend you repair the problem unless qualified.