Symptom:
*NO RESPONSE FROM ACM
POSSIBLE CAUSES
CHECKING FOR VOLTAGE AT ACM
GROUND CIRCUIT OPEN
AIRBAG CONTROL MODULE
PCI BUS CIRCUIT OPEN
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Ensure that the battery is fully charged.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
Disconnect the Airbag Control Module harness connector (C2 connector on premium).
Connect the appropriate Load Tool ACM Adapter to the ACM connector.
Turn the ignition on and then reconnect the Battery.
Using a 12-volt test light connected to ground, probe the Fused Ignition Switch
Output Run Circuit and the Fused Ignition Switch Output Run/Start Circuit.
NOTE: One open circuit will not cause a NO RESPONSE condition.
Is the test light illuminated on both circuits?
All
Yes
→ Go To 2
No
→ Repair the Fused Ignition Switch Output Run and Fused Ignition
Switch Output Run/Start circuits for an open. Replace the fuse(s)
if necessary.
Perform __AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting airbag system components, the ignition must be
turned off and the battery must be disconnected.
2
Ensure that the battery is fully charged.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
Disconnect the Airbag Control Module harness connector (C2 connector on premium).
Connect the appropriate Load Tool ACM Adapter to the ACM connector.
Using a 12-volt test light connected to 12-volts, probe the ground circuit.
NOTE: Make sure test light is connected to the Battery positive terminal.
Is the test light illuminated?
All
Yes
→ Go To 3
No
→ Repair the Ground circuit for an open.
Perform __AIRBAG VERIFICATION TEST - VER 1.
When reconnecting Airbag system components, the ignition must be turned
off and the battery must be disconnected.
201
COMMUNICATION