NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If any battery voltage codes present, first those first. If code 625-9 active, fix that before proceding as well. PROBABLE CAUSES:1. CPC recently programmed incorrectly.2. Another computer on the truck is the cause of the problems (ABS, Transmission, etc…).

NOTE: Fault will set during transmission module reprogramming. If fault occurs while programming, clear code and release vehicle. NOTE: If any battery voltage codes present, first those first. If code 625-9 active, fix that before proceding as well. PROBABLE CAUSES:1. CPC recently programmed incorrectly.2. Another computer on the truck is the cause of the problems (ABS, Transmission, etc…).

NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If there are any cooling system faults or conditions, repair those first. NOTE: If codes are not active, clear them, test drive, and see if they come back. If they don’t, release the vehicle. PROBABLE CAUSES:1. DEF tank header assembly.2. DEF tank header connector/harness.

NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If the ACM (Computer module) has been programmed recently, clear code, test drive, and if code doesn’t come back releaes the vehicle. PROBABLE CAUSES:1. Check DEF tank header harness connector/wiring.2. DEF CAN harness.3. Failed DEF tank header.

DESCRIPTION:Diesel exhaust fluid (DEF) tank temperature sensor circuit failed high. MONITORED PARAMETER:DEF tank temperature sensor. TYPICAL ENABLING CONDITIONS:Always enabled MONITOR SEQUENCE:None EXECUTION FREQUENCY:Always enabled TYPICAL DURATION:Two seconds DASH LAMPS:1. MIL2. CEL ENGINE REACTION:25% Derate. After four hours, engine will be idled after ignition key cycle. VERIFICATION:Engine Idle: one minute. PROBABLE CAUSES:1. DEF tank level/temperature sensor harness/connector.2. DEF tank level/temperature sensor.