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*NO RESPONSE FROM ENGINE CONTROL MODULE (SCI ONLY) - DIESEL (CONTINUED) 3. SCI CIRCUITS SHORTED TO VOLTAGE Turn the ignition on. Measure the voltage of the (D21) SCI Transmit circuit. Measure the voltage of the (D20) SCI Receive circuit. Is the voltage above 1.0 volt for either circuit? Yes >> Repair the SCI Circuit that measured above 1.0 volt for a short to voltage. Perform POWERTRAIN VERIFICATION TEST - VER 1 No >> Go To 4 4. (D21) SCI TRANSMIT CIRCUIT OPEN Turn the ignition off. Measure the resistance of the (D21) SCI Transmit circuit between the Is the resistance below 5.0 ohms? Yes >> Go To 5 No >> Repair the (D21) SCI Transmit circuit for an open. Perform POWERTRAIN VERIFICATION TEST - VER 1 8E - 36 ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS DR/DH |