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P0734-GEAR RATIO ERROR IN 4TH (CONTINUED) 3. CHECK FOR INTERMITTENT OPERATION The conditions to set this DTC are not current at this time. Check the gearshift linkage adjustment. Gear ratio DTC’s can be set by problems in the Input and Output Speed Sensor circuits. If the vehicle passes the Remove the Starter Relay. CAUTION: Removal of the Starter Relay is to prevent a Transmission NO RESPONSE condition and to dis- This DTC can also be set under extreme temperature conditions, this is usually caused by an internal problem. With the scan tool, check the EATX DTC EVENT DATA to help identify the conditions in which the DTC was set. Were there any problems found? Yes >> Repair as necessary. Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. No >> Test Complete. 4. CHECK FOR RELATED PRESSURE SWITCH DTC’S With the scan tool, read Transmission DTC’s. Are the DTC’s P0870 and/or P0871 present also? Yes >> Replace the Transmission Solenoid/Pressure Switch Assembly per the Service Information. Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. No >> Go To 5 5. INTERNAL TRANSMISSION If there are no possible causes remaining, view repair. Repair Repair internal Transmission per the Service Information. Check all of the components related to the Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. 21 - 136 AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS ND |