beaudeen
BEAUDEEN
Evening all...airbag light started flashin 2-4 last week, but horn and cruise work fine...what to do..I have no problem disabling the system if that is possible..your thoughts are greatly appreciated...thanks much..!
air bag light 2-4, BUT..!!
- Thread starter beaudeen
- Start date
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projectSHO89
SHOless In St L
2-4 is not a clockspring issue.
It is most likely a harness, safing sensor, or diagnostic module proble.
You will really need the factory service procedure to diagnose.
Steve
It is most likely a harness, safing sensor, or diagnostic module proble.
You will really need the factory service procedure to diagnose.
Steve
ManySHOs
[]=[] []
It's unlikely that you have the same problem I had but I'll share it anyway. I used to have various airbag codes but I finally discovered why when I routed 2 gauge battery cable from the engine bay to the trunk. It turns out that the mount for the airbag computer (behind the glovebox) was broken and one of the two electrical connectors to the computer was very loose. I plugged everything back in and zip tied the computer back in place. I haven't had a code since.
Ian
Ian
beaudeen
BEAUDEEN
I haven't been rooting around under my dash or glove box ..other than BCM 2 years ago..from reading the posts, I understood 2-4 was a clock spring issue..or was it 6 flashes..??
projectSHO89
SHOless In St L
Here's the first part of the procedure for a LFC 24:
DTC 24: SAFING SENSOR OUTPUT FEED/RETURN CIRCUIT OPEN
Normal Operation
The air bag diagnostic monitor tightly controls the voltage at Pins 11 (Circuit 614, GY/O) and 12 (Circuit 623, P/W) by using two resistors inside the air bag diagnostic monitor. The voltage at Pins 11 and 12 varies with changes in the vehicle charging system voltage (the expected voltages at Pins 11 and 12 are shown in the following table). The air bag diagnostic monitor measures the vehicle system charging voltage at Pin 13 (Circuit 937, R/W, battery input). By measuring the voltage at Pin 13, the air bag diagnostic monitor can accurately predict what the voltage at Pins 11 and 12 should be in a normally functioning system. The air bag diagnostic monitor measures the voltages at Pins 11 (Circuit 614, GY/O) and 12 (Circuit 623, P/W) and compares them to the voltage at Pin 13, (Circuit 937, R/W, battery reference). If the voltages at Pins 11 and 12 are low in comparison to Pin 13 or if the voltage at Pin 11 is high and the voltage at Pin 12 is low, the air bag diagnostic monitor will flash a code 24.
Possible Causes
Low voltage at Pins 11 and 12 or high voltage at Pin 11 and low voltage at Pin 12 can be caused by:
(1) An open circuit or high resistance in the wiring harness in Circuit 614 (GY/O) or 623 (P/W).
(2) An open circuit or high resistance inside the safing sensor across the GY/O and P/W wires.
(3) Resistance to ground on Circuit 614 (GY/O) or 623 (P/W). Circuits 614 and 623 should be open circuits to ground when the air bag diagnostic monitor is disconnected from the harness. Resistance to ground on these circuits can cause a drop in the diagnostic voltage on both circuits.
(4) Intermittent battery voltage at Pin 13 can cause the reference voltage inside the air bag diagnostic monitor to fluctuate and can cause diagnostic trouble code 24 in some circumstances
...
DTC 24: SAFING SENSOR OUTPUT FEED/RETURN CIRCUIT OPEN
Normal Operation
The air bag diagnostic monitor tightly controls the voltage at Pins 11 (Circuit 614, GY/O) and 12 (Circuit 623, P/W) by using two resistors inside the air bag diagnostic monitor. The voltage at Pins 11 and 12 varies with changes in the vehicle charging system voltage (the expected voltages at Pins 11 and 12 are shown in the following table). The air bag diagnostic monitor measures the vehicle system charging voltage at Pin 13 (Circuit 937, R/W, battery input). By measuring the voltage at Pin 13, the air bag diagnostic monitor can accurately predict what the voltage at Pins 11 and 12 should be in a normally functioning system. The air bag diagnostic monitor measures the voltages at Pins 11 (Circuit 614, GY/O) and 12 (Circuit 623, P/W) and compares them to the voltage at Pin 13, (Circuit 937, R/W, battery reference). If the voltages at Pins 11 and 12 are low in comparison to Pin 13 or if the voltage at Pin 11 is high and the voltage at Pin 12 is low, the air bag diagnostic monitor will flash a code 24.
Possible Causes
Low voltage at Pins 11 and 12 or high voltage at Pin 11 and low voltage at Pin 12 can be caused by:
(1) An open circuit or high resistance in the wiring harness in Circuit 614 (GY/O) or 623 (P/W).
(2) An open circuit or high resistance inside the safing sensor across the GY/O and P/W wires.
(3) Resistance to ground on Circuit 614 (GY/O) or 623 (P/W). Circuits 614 and 623 should be open circuits to ground when the air bag diagnostic monitor is disconnected from the harness. Resistance to ground on these circuits can cause a drop in the diagnostic voltage on both circuits.
(4) Intermittent battery voltage at Pin 13 can cause the reference voltage inside the air bag diagnostic monitor to fluctuate and can cause diagnostic trouble code 24 in some circumstances
...
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