Airbag flashes 10 times misses a flash then flashes 10 times an misses again (1991 Town Car)
Try clearing the codes & see if it returns. I do not see a code fault 10. Starts at 12.
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Section 01-20B: Restraints, Passive — Supplemental Air Bag System
1995 Town Car, Crown Victoria, Grand Marquis Workshop Manual
DIAGNOSIS AND TESTING
Diagnostic Trouble Code Clearing
Procedure to Clear Diagnostic Trouble Codes from Diagnostic Monitor Non-Volatile Random Access Memory.
Normal Operation
The air bag diagnostic monitor (14B056) continually checks the air bag system for readiness. When a fault condition is detected, the DTC associated with that fault is stored in the air bag diagnostic monitor's Non-Volatile Random Access Memory (NVRAM). After writing the DTC to NVRAM, the air bag diagnostic monitor signals the fault by flashing the appropriate diagnostic trouble code on the air bag indicator.
The diagnostic trouble code written to NVRAM is permanently stored in the air bag diagnostic monitor until cleared by the diagnostic trouble code clearing procedure.
Example: Due to corrosion, high resistance develops on the driver side air bag circuit. The air bag diagnostic monitor stores a diagnostic trouble code 32 in NVRAM. Upon each cycle of the ignition switch , the air bag diagnostic monitor checks the resistance of the driver air bag circuit.
Once a fault has been serviced, the associated diagnostic trouble code may be cleared from NVRAM. Only diagnostic trouble codes that the air bag diagnostic monitor sees as repaired or intermittent may be cleared (diagnostic trouble codes 52 and above). In no circumstances can hard fault conditions (diagnostic trouble codes 45 and below) be cleared.
Diagnostic Trouble Code Retrieval
Procedure to Retrieve Stored Diagnostic Trouble Codes from Diagnostic Monitor Non-Volatile Random Access Memory
Some Diagnostic Trouble Codes (DTCs) for intermittent problems (61-85) may not automatically flash on the air bag indicator and may require retrieval. If an air bag DTC has been reported on a vehicle but is not currently flashing, this may be due to two reasons: A charging system concern has been identified by the diagnostic monitor and a DTC 12 indicated. DTC 12 will not be stored in the air bag diagnostic monitor's Non-Volatile Random Access Memory (NVRAM) under these circumstances. Correction of the charging system problem will eliminate the DTC.
An intermittent fault has occurred and the fault is no longer present. The diagnostic monitor may be programmed to flash "intermittent" DTCs 61-85 that are stored in NVRAM. Use the following procedure to access the stored DTC(s).
Locate the air bag diagnostic service connector containing Circuit 631 (T/R). This is a grey connector under the glove compartment.
With the ignition key OFF, short Circuit 631 to the ground contained in the service connector or another good ground.
Turn the ignition key to RUN and observe the six second air bag indicator prove-out.
Within two seconds after indicator prove-out, remove the short on Circuit 631.
Stored DTCs will be displayed. After service, repeat steps 1-4 and clean the DTCs using the DTC Clearing Procedure.
AIR BAG DIAGNOSTIC MONITOR DIAGNOSTIC TROUBLE CODE PRIORITY TABLE
Priority
Code
Component/Fault Description
Highest
—
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 Crash Sensor Not Mounted to Vehicle Properly
45
LH Radiator 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 Properly
85
Intermittent or Repaired LH Radiator Primary Crash Sensor Not Mounted to Vehicle Properly
Lowest
—
Rapid Continuous Flashing of Air Bag Indicator - Both Primary Crash Sensors Disconnected - Assembly Plant Mode
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Usually due to a poor
connection in the YELLOW PLASTIC CONNECTOR underneath the passenger seat.
Just push it together
properly and it should clear the AirBag fault light
3,319 views
Usually answered in minutes!
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