TEST
ACTION
APPLICABILITY
7
Turn the ignition off.
Disconnect the PCM harness connectors.
Disconnect the DRB from the DLC.
Measure the resistance between ground and the SCI Receive circuit at the DLC (cav
12).
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the SCI Receive circuit for a short to ground.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No
→ Go To 8
8
Turn the ignition off.
Disconnect the PCM harness connectors.
Disconnect the DRB from the DLC.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the SCI Receive circuit from the DLC (cav 12) to the
appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 9
No
→ Repair the SCI Receive circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
9
Turn the ignition off.
Disconnect the PCM harness connectors.
Disconnect the DRB from the DLC.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the SCI Transmit circuit from the DLC (cav 7) to the
appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 10
No
→ Repair the SCI Transmit circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
10
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
25
COMMUNICATION
*NO RESPONSE FROM PCM (PCM SCI ONLY) - NGC —
Continued