TEST
ACTION
APPLICABILITY
3
NOTE: Inspect the ASD Relay fuse located in the IPM. If the ASD Relay fuse
is open, repair the cause of the open first before continuing. Inspect the ASD
Relay Output circuit for a short to ground for the cause of the open fuse.
Turn the ignition off.
Remove the ASD Relay from the IPM.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Fused B+ circuit in the IPM.
Does the test light illuminate?
All
Yes
→ Go To 4
No
→ Replace the IPM Fuse & Relay Center.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
4
Turn the ignition off.
Remove the ASD Relay from the IPM.
Turn the ignition on.
Using a 12-volt test light connected to 12-volts, probe the ASD Relay Control circuit
in the IPM.
With the DRBIII
t, actuate the ASD Relay.
Does the test light flash on and off?
All
Yes
→ Replace the ASD Relay.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the IPM C3 harness connector.
Turn the ignition on.
Using a 12-volt test light connected to 12-volts, probe the ASD Relay Control circuit
in the IPM harness connector.
With the DRBIII
t, actuate the ASD Relay.
Does the test light flash on and off?
All
Yes
→ Replace the IPM Fused & Relay Center.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→ Go To 6
6
Turn the ignition off.
Disconnect the IPM C3 harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the ASD Relay Control circuit between the IPM C3 harness
connector and the PCM harness connector.
Is the resistance below 5.0 ohms.
All
Yes
→ Go To 7
No
→ Repair the ASD Relay Control circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
439
DRIVEABILITY - NGC
P0685-ASD RELAY CONTROL CIRCUIT —
Continued