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P2100-ELECTRONIC THROTTLE CONTROL MOTOR CIRCUIT (CONTINUED) 9. (K448) ETC NEGATIVE CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K448) ETC Negative Is the resistance below 100 ohms? Yes >> Repair the short to ground in the (K448) ETC Negative cir- cuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 10 10. ETC MOTOR NOTE: Take the following measurement using special tool #8815 Is the resistance between 2.5 and 25 ohms at closed throttle? Yes >> Go To 11 No >> Replace the Throttle Body Assembly. Disconnect the Bat- tery when replacing the Throttle Body Assembly. After Perform the POWERTRAIN VERIFICATION TEST. (Refer 11. PCM NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal Were there any problems found? Yes >> Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) No >> Replace and program the Powertrain Control Module per Service Information. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 9 - 842 ENGINE - ELECTRICAL DIAGNOSTICS - 3.7L/4.7L/5.7L DR/DH |