Chart C, Inflatable Restraint Indicator Comes On Steady (2 Of 2): Description
When ignition is first turned on, system voltage is applied from fuse C-22 to DERM at SIR INDICATOR HIGH input and to INFLATABLE RESTRAINT indicator light, which is connected to SIR INDICATOR LOW. Fuse C-23 applies system voltage to IGNITION 1 inputs. DERM responds by flashing INFLATABLE RESTRAINT indicator 7-9 times.
When engine is cranked, system voltage is applied from fuse C-21 to DERM at CRANK input. DERM grounds light circuit until system voltage is removed from CRANK input. This results in a steady INFLATABLE RESTRAINT indicator during cranking. After engine is cranked, DERM will again flash INFLATABLE RESTRAINT indicator 7-9 times.
NOTE:
Test numbers refer to test numbers on diagnostic chart. For circuit number identification, see WIRING DIAGRAMS.
- 6) Checks for open in IGNITION 1 circuit No. 1139 and junction connector.
- 7) Checks whether fault is caused by a short to voltage in crank circuit No. 806 or a faulty DERM.
WARNING:
To avoid air bag deployment and injury when trouble shooting system, only use test equipment specified in diagnostic charts.