ZH
*NO RESPONSE FROM OCCUPANT RESTRAINT CONTROLLER (CONTINUED)
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
ORC GROUND CIRCUIT OPEN
SCI TRANSMIT CIRCUIT OPEN
SCI TRANSMIT CIRCUIT SHORTED TO GROUND
SCI TRANSMIT CIRCUIT SHORTED TO VOLTAGE
OCCUPANT RESTRAINT CONTROLLER
For a complete Data Link Connector Circuit Diagram, (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MOD-
ULES - SCHEMATICS AND DIAGRAMS).
Diagnostic Test
1.
CHECK COMMUNICATION WITH OTHER MODULES
Turn the ignition on.
Using the DRB III , attempt to communicate with any other module.
Is the DRB III able to communicate with the module selected?
Yes
>> Go to 2
No
>> Perform Symptom *No Response From All Modules.
2.
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
WARNING: TURN THE IGNITION OFF, DISCONNECT THE BAT-
TERY AND WAIT TWO MINUTES BEFORE PROCEEDING.
Turn the ignition off.
Disconnect the Occupant Restraint Controller (ORC) harness connec-
tor.
Note: Check connector — Clean/repair as necessary.
Reconnect the battery.
Turn the ignition on.
Measure the voltage of the Fused Ignition Switch Output circuit at the
ORC harness connector.
Is the voltage above 10 volts?
Yes
>> Go to 3
No
>> Repair the Fused Ignition Switch Output circuit for an open.
WARNING: WHEN RECONNECTING AIRBAG SYSTEM COMPONENTS, THE IGNITION MUST BE TURNED OFF
AND THE BATTERY MUST BE DISCONNECTED FOR TWO MINUTES.
Perform AIRBAG VERIFICATION TEST.
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS 8E - 15
POSSIBLE CAUSES