|
|
Content .. 1277 1278 1279 1280 ..
P0888-TRANSMISSION RELAY ALWAYS OFF (CONTINUED) 2. (A104) FUSED B+ CIRCUIT OPEN Turn the ignition off to the lock position. Remove the Transmission Control Relay. NOTE: Check connectors - Clean/repair as necessary. Using a 12-volt test light connected to ground, check the (A104) Fused NOTE: The test light must illuminate brightly. Compare the bright- Does the test light illuminate brightly? Yes >> Go To 3 No >> Repair the (A104) Fused B+ circuit for an open. If the fuse is open make sure to check for a short to ground. Perform 45RFE/545RFE TRANSMISSION VERIFICATION 3. (Z915) TRANSMISSION CONTROL RELAY GROUND CIRCUIT OPEN Turn the ignition off to the lock position. Using a 12-volt test light connected to 12-volts, check the (Z915) Does the test light illuminate brightly? Yes >> Repair the (Z915) Transmission Control Relay Ground cir- cuit for an open. Perform 45RFE/545RFE TRANSMISSION VERIFICATION No >> Go To 4 4. TRANSMISSION CONTROL RELAY Install a substitute relay in place of the Transmission Control Relay. Start the vehicle. With the scan tool, check transmission DTCs. Did the DTC P0888 reset? Yes >> Replace the Transmission Control Relay. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Go To 5 HB AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS 21 - 521 |