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TEST ACTION APPLICABILITY 2 With the DRBIII t, read Transmission DTC’s. If any of these DTC’s are present, perform their respective tests first. All Yes → Refer to appropriate symptom in the Transmission category. If any of these DTC’s are present, they will cause a gear ratio error. No → Go To 3 3 With the DRBIII t, perform the 3rd Gear Clutch test. Follow the instructions on the DRBIII t. Increase the throttle angle or TPS Degree to 30° for no more than a few seconds. All Yes → Go To 4 No → Go To 5 4 The conditions to set this DTC are not current at this time. t, check the EATX EVENT DATA to help identify the conditions in which the DTC was set. All Yes → Repair as necessary. Perform 40/41TE (NGC) TRANSMISSION VERIFICATION No → Test Complete. 5 With the DRBIII t, read Transmission DTC’s. Are the DTC’s P0870 and/or P0871 present also? All Yes → Replace the Transmission Solenoid/Pressure Switch Assembly per the Service Information. No → Go To 6 80 TRANSMISSION - NGC P0733-GEAR RATIO ERROR IN 3RD — Continued |