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P0845-2C HYDRAULIC PRESSURE TEST (CONTINUED) 11. WIRING AND CONNECTORS Turn the ignition off to the lock position. Remove the Starter Relay. NOTE: Failure to remove the Starter Relay can cause a Transmission - No Response condition. Install the Transmission Simulator, Miller tool #8333. On the Transmission Simulator, turn the Pressure Switch selector switch to 2C. Ignition on, engine not running. With the scan tool, monitor the 2C Pressure Switch state while pressing and holding the Pressure Switch test button Did the 2C Pressure Switch state change to closed and remain closed while wiggling the wires? Yes >> Go To 12 No >> Go To 14 12. CHECK FOR EXCESSIVE DEBRIS Turn the ignition off to the lock position. Remove the Transmission Simulator, Miller tool #8333. Remove and inspect the Transmission Oil Pan per the Service Information. Does the Transmission Oil Pan contain excessive debris or contamination? Yes >> Repair the cause of the excessive debris in the Transmission Oil Pan. Refer to the Service Information for the proper procedures. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Go To 13 13. CHECK 2C HYDRAULIC CLUTCH CIRCUIT Remove the Valve Body and air check the 2C clutch hydraulic circuit, in the 2C/4C clutch retainer, for leakage per NOTE: The 2C hydraulic clutch circuit contains a small bleed orifice, a small amount of air leakage is nor- Was there excessive air leakage noticed during the air check? Yes >> Repair as necessary. Check the 2C clutch piston, piston seals and bleed orifice assembly. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Disassemble and inspect the Valve Body and repair as necessary. Inspect the 2C Accumulator piston and seals. Check for an extra check ball downstream from the #7 check ball pocket and repair as nec- Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. HB AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS 21 - 461 |