Test NS-6C: Repairing No Response Condition

NOTE: Perform TEST NS-6B before proceeding.

If ignition was on when NO RESPONSE message was displayed, go to next step. If ignition was off when NO RESPONSE message was displayed, turn ignition on to get a response. Test is complete.
Turn ignition off. Disconnect scan tool from data link connectors. Disconnect Powertrain Control Module (PCM) connector. Using an ohmmeter, check resistance of Serial Communications Interface (SCI) transmit wire at 16-pin data link connector. See DATA LINK CONNECTOR WIRE IDENTIFICATION table. Go to next step.
If resistance is 5 ohms or more, go to next step. If resistance is less than 5 ohms, repair short to ground on SCI transmit circuit. Perform TEST VER-1A .
Using an ohmmeter, check resistance of Serial Communications Interface (SCI) engine receive wire at 12-pin data link connector. See DATA LINK CONNECTOR WIRE IDENTIFICATION table. If resistance is 5 ohms or more, go to next step. If resistance is less than 5 ohms, repair short to ground on SCI engine receive circuit. Perform TEST VER-1A .
Using an ohmmeter, check resistance of SCI transmit wire between 16-pin data link connector and Powertrain Control Module (PCM) connector terminal No. 65. See DATA LINK CONNECTOR WIRE IDENTIFICATION table and PCM CONNECTOR WIRE IDENTIFICATION table. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open SCI transmit circuit. Perform TEST VER-1A .
Using an ohmmeter, check resistance of SCI engine receive wire between 12-pin data link connector and PCM connector terminal No. 75. See DATA LINK CONNECTOR WIRE IDENTIFICATION table and PCM CONNECTOR WIRE IDENTIFICATION table. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open SCI engine receive circuit. Perform TEST VER-1A .
Connect scan tool to a functional data link connector on another vehicle. Turn ignition on. Using scan tool, attempt to read trouble codes. If scan tool displays NO RESPONSE, go to next step. If scan tool does not display NO RESPONSE, replace initial vehicles Powertrain Control Module (PCM). Perform TEST VER-1A .
Substitute another scan tool adapter cable. Using scan tool, attempt to read trouble codes. If scan tool displays NO RESPONSE, repair or replace scan tool. If scan tool does not display NO RESPONSE, replace scan tool adapter cable.

DATA LINK CONNECTOR WIRE IDENTIFICATION

Application		Wire Color
12-Pin Data Link Connector
SCI Engine Receive Circuit		Dark Blue/Black
16-Pin Data Link Connector
SCI Transmit Circuit		Pink

PCM CONNECTOR WIRE IDENTIFICATION

Application		Wire Color
PCM Terminal No. 65 (SCI Transmit Circuit)
Avenger, Sebring Coupe & Talon		Pink
PCM Terminal No. 75 (SCI Receive Circuit)
Avenger, Sebring Coupe & Talon		Dark Blue/Black