TEST ACTION APPLICABILITY
4 Turn the ignition off.
Disconnect the DRBIIIt from the DLC.
Disconnect the PCM harness connectors.
Turn the ignition on.
Disconnect the Low Tire Pressure Warning Module harness connector (if equipped).
Measure the voltage of the SCI Transmit circuit at the DLC.
Is the voltage above 1.0 volt?
All
Yes → Repair the SCI Transmit circuit for a short to voltage.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No → Go To 5
5 Turn the ignition off.
Disconnect the DRBIIIt from the DLC.
Disconnect the PCM harness connectors.
Turn the ignition on.
Measure the voltage of the SCI Receive circuit at the DLC.
Is the voltage above 1.0 volt?
All
Yes → Repair the SCI Receive circuit for a short to voltage.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No → Go To 6
6 Turn the ignition off.
Disconnect the DRBIIIt from the DLC.
Disconnect the PCM harness connectors.
Measure the resistance between the SCI Transmit circuit and the SCI Receive circuit
at the PCM connector.
Is the resistance below 5.0 ohms?
All
Yes → Repair the short between the SCI Transmit and the SCI Receive
circuits.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No → Go To 7
7 Turn the ignition off.
Disconnect the PCM C3 harness connector.
Disconnect the DRBIIIt from the DLC.
Measure the resistance between ground and the SCI Receive circuit.
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 C3 harness connector.
Disconnect the DRBIIIt from the DLC.
Measure the resistanceof the SCIReceive circuit betweenthe PCM C3connector and
the DLC.
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.
167
COMMUNICATION
*NO RESPONSE FROM PCM (SCI ONLY) — Continued
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