Faulty Signal

ECM-9200 CRUISE CONTROL
FAULTY SIGNAL

Reading Diagnostic Trouble Code (DTC) status ECM-9200




Note! When Reading the Diagnostic Trouble Code (DTC) status, other stored Diagnostic Trouble Codes (DTCs) and their status will be listed.

- Read the Diagnostic Trouble Code (DTC) status. Check the status of the relevant Diagnostic Trouble Code (DTC).

Was the status of the relevant Diagnostic Trouble Code (DTC) displayed as permanent?
Yes - Skipt to "Checking Component and Wiring - Permanent"
No - Continue below.


Checking Component and Wiring - Intermittent



Check cruise control lever connector for loose connections according 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 supply voltage 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 supply voltage 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, Pinout Values and Diagnostic Parameters


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


Checking Component and Wiring - Permanent



Check visually connector and connections according to Checking Wiring and Terminals. Permanent Fault

Check signal cable between Engine Control Module (ECM) # B47 (# B57) and cruise control lever # 1 for a short-circuit to ground according to [1][2]Checking Wiring and Terminals. Permanent Fault

Check signal cable between Engine Control Module (ECM) # B33 (# B43) and cruise control lever # 2 for a short-circuit to ground according to [1][2]Checking Wiring and Terminals. Permanent Fault

Check signal cable between Engine Control Module (ECM) # B20 (# B30) and cruise control lever # 3 for a short-circuit to supply voltage according to [1][2]Checking Wiring and Terminals. Permanent Fault

Check signal cable between Engine Control Module (ECM) # B34 (# B44) and
cruise control lever # 4 for a short-circuit to supply voltage according to [1][2]Checking Wiring and Terminals. Permanent Fault

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. Permanent Fault

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, Pinout Values and Diagnostic Parameters
- With Cruise ON the voltage to the cruise control lever is a quadratic wave with maximum voltage Ubat and is supplied via Engine Control Module (ECM) terminal # B47.
- At Cruise OFF the voltage to the cruise control lever is a saw tooth wave with top voltage Ubat and offset voltage of approximately 7.5 V.


Fault-tracing information
Fault-tracing is not followed by verification for this fault.