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P0770-4C SOLENOID CIRCUIT (CONTINUED) 2. CHECK TO SEE IF P0770 IS PRESENT Turn the ignition off to the lock position. Remove the Starter Relay. NOTE: Removal of the Starter Relay is to prevent a Transmission, NO RESPONSE, condition and disable the NOTE: Check connectors - Clean/repair as necessary. With the scan tool, actuate the 4C Solenoid. Monitor the 4C Solenoid LED on the Transmission Simulator. Did the 4C Solenoid LED on the Transmission Simulator blink on and off? Yes >> Go To 3 No >> Go To 4 3. TRANSMISSION SOLENOID/TRS ASSEMBLY With the scan tool, continue to actuate the 4C Solenoid for the period of 2 minutes with the Transmission Simulator After 2 minutes of actuation, with the scan tool, stop the actuation and check for transmission DTCs. Did the DTC P0770 reset during the actuation test? Yes >> Go To 4 No >> Replace the Transmission Solenoid/TRS Assembly per the Service Information. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. 4. (T259) 4C SOLENOID CONTROL CIRCUIT SHORT TO OTHER CIRCUITS Turn the ignition off to the lock position. Disconnect the Transmission Simulator, Miller tool #8333. Disconnect the PCM harness connectors. Measure the resistance between the (T259) 4C Solenoid Control cir- Is the resistance below 5.0 ohms between the (T259) 4C Sole- Yes >> Repair the (T259) 4C Solenoid Control circuit for a short to other circuit(s). Perform 45RFE/545RFE TRANSMISSION VERIFICATION No >> Go To 5 21 - 122 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS WK |