No Module/Network Communication - SCP Link

PINPOINT TEST 6 - NO MODULE/NETWORK COMMUNICATION - SCP LINK

PINPOINT TEST 1		MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL - SMART JUNCTION BOX (SJB)
STEP	INSPECTION		ACTION
1	CHECK DLC CONNECTOR D-01 FOR DAMAGE Key OFF. Inspect DLC connector D-01 for damage. Is DLC connector D-01 OK?	Yes	Go to step 2.
1		No	Repair the DLC D-01. Carry out the data link diagnostics test. See DATA LINK DIAGNOSTICS TEST .
2	CHECK THE PCM 0140-175 FOR DAMAGE Disconnect PCM connector 0140-175. Inspect the PCM 0140-175. Is the PCM 0140-175 OK?	Yes	Go to step 3.
2		No	Repair the PCM 0140-175. Carry out the data link diagnostics test. See DATA LINK DIAGNOSTICS TEST .
3	CHECK CIRCUITS T/O AND P/LB FOR AN OPEN Measure the resistance between the PCM 0140-175 pin 15, circuit P/LB, harness side and DLC D-01 pin 10, circuit P/LB, harness side; and between the PCM 0140-175 pin 16, circuit T/O, harness side and DLC D-01 pin 2, circuit T/O, harness side. Are the resistances less than 5 ohms?	Yes	Go to step 4.
3		No	Repair the circuit in question. Carry out the data link diagnostics test. See DATA LINK DIAGNOSTICS TEST .
4	CHECK THE SCP CIRCUITS FOR A SHORT TO GROUND Measure the resistance between the DLC D-01 pin 10, circuit P/LB, harness side and ground: and between the DLC D-01 pin 2, circuit T/O, harness side and ground Are the resistances greater than 10,000 ohms?	Yes	Go to step 5.
4		No	Repair the circuit in question. Carry out the data link diagnostics test. See DATA LINK DIAGNOSTICS TEST .
5	CHECK THE SCP CIRCUITS FOR A SHORT TO POWER Key ON. Measure the voltage between the DLC D-01 pin 10, circuit P/LB, harness side and ground: and between the DLC D-01 pin 2, circuit T/O, harness side and ground Is any voltage indicated?	Yes	Repair the circuit in question. Carry out the data link diagnostics test. See DATA LINK DIAGNOSTICS TEST .
5		No	Go to step 6.
6	CHECK FOR CORRECT PCM OPERATION Disconnect all PCM connectors. Check for: corrosion pushed-out pins Connect all PCM connectors and make sure they seat correctly. Operate the system and verify the concern is still present. Is the concern still present?	Yes	Install a new PCM. See POWERTRAIN CONTROL MODULE (PCM) REMOVAL/INSTALLATION . Carry out the data link diagnostics test. See DATA LINK DIAGNOSTICS TEST .
6		No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. Clear the DTCs. REPEAT the self-test. Carry out the data link diagnostics test. See DATA LINK DIAGNOSTICS TEST .