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P0888-TRANSMISSION RELAY ALWAYS OFF (CONTINUED) 2. CHECK THE (A104) FUSED B+ CIRCUIT Turn the ignition off to the lock position. Remove the Transmission Control Relay. NOTE: Check connectors - Clean/repair as necessary. NOTE: The test light must illuminate brightly. Compare the bright- Does the test light illuminate brightly? Yes >> Go To 3 No >> Go To 9 3. (T16) TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN Connect a jumper wire between the (A104) Fused B+ circuit and the Ignition on, engine not running. With the scan tool, read the Transmission Switched Battery voltage. Is the Switched Battery voltage equal to battery voltage? Yes >> Go To 4 No >> Repair the (T16) Transmission Control Relay Output cir- cuits for an open or high resistance. Note: There are mul- Perform 42RLE TRANSMISSION VERIFICATION TEST - HB AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS 21 - 125 |