Ford Mustang (1999-2004) Service Manual: Pinpoint Tests - Air Bag Supplemental Restraint System (SRS)
Special Tool(s)
 |
73III Automotive Meter 105-R0057 or equivalent |
 |
Diagnostic Tool, Restraint System 418-F088 (105-R0012) |
 |
Worldwide Diagnostic System (WDS) 418-F224, New Generation STAR (NGS) Tester 418-F052, or equivalent scan tool |
Restraint System Diagnostic Tool Warning
WARNING: This tool is for restraint system service only. Remove from vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards.
Pinpoint Test Note
Do not carry out any pinpoint test unless directed by the Symptom Chart.
- Pinpoint Test A: The Air Bag Warning Indicator Is Illuminated Continuously - RCM Disconnected, Inoperative or Lost/Low Ignition Feed
- Pinpoint Test B: LFC 21/DTC B1921 - RCM Bracket Ground Resistance High
- Pinpoint Test C: LFC 29/DTC C1414 - Incorrect Vehicle Identification Code
- Pinpoint Test D: LFC 15/DTC B 1887- Driver Air Bag Circuit Shorted to Ground
- Pinpoint Test E: LFC 15/DTC B1916 - Driver Air Bag Circuit Shorted to Battery or Ignition
- Pinpoint Test F: LFC 16/DTC B1888 - Passenger Air Bag Circuit Shorted to Ground
- Pinpoint Test G: LFC 16/DTC B1925 - Passenger Air Bag Circuit Shorted to Battery or Ignition
- Pinpoint Test H: LFC 32/DTC B1932 - Driver Air Bag Circuit Resistance High
- Pinpoint Test I: LFC 33/DTC B1933 - Passenger Air Bag Circuit Resistance High
- Pinpoint Test J: LFC 34/DTC B1934 - Driver Air Bag Circuit Resistance Low
- Pinpoint Test K: LFC 35/DTC B1935 - Passenger Air Bag Circuit Resistance Low
- Pinpoint Test L: B1892 - Air Bag Tone Warning Indicator Circuit Shorted to Ground or Open
- Pinpoint Test M: DTC B1891 - Air Bag Tone Warning Indicator Circuit Shorted to Battery or Ignition
- Pinpoint Test N: DTC B1869 - Air Bag Indicator Inoperative
- Pinpoint Test O: DTC B1870 - Air Bag Indicator Shorted to Battery
- Pinpoint Test P: No Communication With The Restraints Control Module
Diagnostic Instructions - Air Bag Supplemental Restraint
System (SRS)
Special Tool(s)
Worldwide Diagnostic System
(WDS)
418-F224,
New Generation STAR (NGS)
Tester
418-F052, or equivalent scan
tool
The symptom chart can be used to help locate th ...
Pinpoint Test A: The Air Bag Warning Indicator Is Illuminated Continuously
- RCM
Disconnected, Inoperative or Lost/Low Ignition Feed
Normal Operation
NOTE: During normal operation the air bag indicator will be lit continuously
for 6 seconds after the
ignition switch is placed in the RUN position and after five cycles of a lamp
fa ...
Other materials:
Preliminary Inspection
The following items must be checked prior to beginning the diagnostic
procedures:
Know and Understand the Concern
In order to correctly diagnose a concern, first understand the
customer complaint or condition.
Customer contact may be required in ord ...
Electronic Engine Controls (Description and Operation)
The electronic engine controls consist of the following:
powertrain control module (PCM)
throttle position (TP) sensor
idle air control (IAC) valve
engine coolant temperature (ECT) sensor
cylinder head temperature sensor
camshaft position ...
Symptom Chart
Condition
Possible Sources
Action
Incorrect/erratic direction
of airflow from outlet(s)
No vacuum to A/C heater
function switch selector.
A/C heater function selector
switch leaks vacuum.
Kinked/pinched vacuu ...
