Chart D, Inflatable Restraint Indicator Does Not Come On (3 Of 4): Description
When ignition is first turned on, system voltage is applied from fuse C-22 to DERM at SIR INDICATOR HIGH terminal B9 and to INFLATABLE RESTRAINT indicator, which is connected to SIR INDICATOR LOW terminal A1. Fuse C-23 applies system voltage to IGNITION 1 inputs, terminals A3 and B3. 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 if ignition is on.
NOTE:
Test number refers to test number on diagnostic chart. For circuit number identification, see WIRING DIAGRAMS.
- 8) Checks whether open is in SIR INDICATOR LOW circuit No. 358 or in instrument cluster.
WARNING:
To avoid air bag deployment and injury when trouble shooting system, only use test equipment specified in diagnostic charts.