Allison

Main code 69 indicates the ECU has malfunctioned. ECU, open driver, C solenoid circuit To assist in tracking ECU reliability, the subcode has been included to indicate the cause of the ECU malfunction. Most codes, except Code 69 34, can be cleared; but they will probably recur. Replacing the ECU corrects the problem.

Main code 69 indicates the ECU has malfunctioned. ECU, open driver, C solenoid circuit To assist in tracking ECU reliability, the subcode has been included to indicate the cause of the ECU malfunction. Most codes, except Code 69 34, can be cleared; but they will probably recur. Replacing the ECU corrects the problem.

DIAGNOSTIC RESPONSE:Inhibits retarder operation if not using J1939 datalink CIRCUIT DESCRIPTION:The TCM may be calibrated to receive a Retarder Modulation Request (RMR) signal from a retarder request sensor, sometimes called a resistance module or RMR device. NOTE: A TCM calibration with the retarder feature can be specified to:1. Only receive an analog RMR on W156.2. Only receive the RMR message on SAE J1939.3. Receive both an analog RMR signal and a SAE J1939 RMR message. The TCM is connected to the retarder request sensor by:1. A 5V reference voltage (W112),2. Retarder request signal (W156), and3. Analog ground (W158). The TCM...

DIAGNOSTIC RESPONSE:May inhibit retarder operation if not using J1939 datalink CIRCUIT DESCRIPTION:The TCM may be calibrated to receive a Retarder Modulation Request (RMR) signal from a retarder request sensor, sometimes called a resistance module or RMR device. NOTE: A TCM calibration with the retarder feature can be specified to:1. Only receive an analog RMR on W156.2. Only receive the RMR message on SAE J1939.3. Receive both an analog RMR signal and a SAE J1939 RMR message. The TCM is connected to the retarder request sensor by:1. A 5V reference voltage (W112),2. Retarder request signal (W156), and3. Analog ground (W158). The...

DIAGNOSTIC RESPONSE:Use default throttle values. Freezes shift adapts CIRCUIT DESCRIPTION:The TCM may be calibrated to receive an analog TPS pedal position signal from a TPS. Throttle position information comes from a resistive sensor. The resistive throttle sensor is attached to throttle linkage. This device produces a voltage proportional to throttle position. NOTE: Refer to Throttle Position Sensor (TPS) Adjustment for the TPS adjustment procedure and signal voltage specifications. NOTE: The transmission TPS is not the same accelerator pedal sensor that the driver actuates to accelerate the vehicle. The transmission TPS is not used to fuel, accelerate, or decelerate the engine...