Signal Missing - Intermittent Fault

ECM-928C CONTROL MODULE, COMMUNICATION PROBLEMS
SIGNAL MISSING - INTERMITTENT FAULT

Checking component and wiring






Check cruise control lever connector for loose connections accroding to [1][2]Checking Wiring and Terminals. Intermittent Faults

Check signal cable between engine control module (ECM) # B47 (# B57) and cruise control lever # 1 for an intermittent short-circuit to ground according to [1][2]Checking Wiring and Terminals. Intermittent Faults

Check signal cable between engine control module (ECM) # B33 (# B43) and cruise control lever # 2 for an intermittent short-circuit to ground according to [1][2]Checking Wiring and Terminals. Intermittent Faults

Check signal cable between engine control module (ECM) # B20 (# B30) and cruise control lever # 3 for an intermittent short-circuit to supply voltage according to [1][2]Checking Wiring and Terminals. Intermittent Faults

Check signal cable between engine control module (ECM) # B34 (# B44) and cruise control lever # 4 for an intermittent short-circuit to supply voltage according to [1][2]Checking Wiring and Terminals. Intermittent Faults

Check signal cable between engine control module (ECM) # B19 (# B29) and cruise control lever # 5 for an intermittent short-circuit to supply voltage according to [1][2]Checking Wiring and Terminals. Intermittent Faults

Remedy as necessary

Other information.
- To connect the breakout box, Connecting the Breakout Box (ECM)
- To access/replace the cruise control lever, Cruise Control Lever/Turn Signal Indicator Switch, Replacing
- For information about signals, see Diagnostic Parameters and Pinout Values. Signal Description, ME7, B5XX4T


Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.