S&S Cycle IST Ignition System for 1984-1999 Big Twin and Custom Applications - Manual (Page 13)

f. Ride through intersections/stretches of road where second and third gear roll-ons are required.
G. Basic Troubleshooting:
Below are some suggestions if any problems are encountered with the IST Ignition Module.
1. Problem: Engine cranks but will not start.
Possible solutions:
a. Check that the gas tank is full and that the fuel petcock is turned on.
b. Check that coil wires (plug and harness) have been reinstalled properly.
c. Check that all connections are complete on the Wiring Harness Adapter.
d. Check that the coil has been reconnected.
e. Check Cam Position Sensor connectors for correct wire color coding.
2. Problem: Key power-on switch does not seem to work.
Possible solutions:
a. Check that the power relay is properly connected on the underside connector. Raising the tank during installation can pull enough on the
wire harness to disconnect the power relay.
b. Check that the battery has been properly reconnected.
c. Check that the all connectors are connected correctly.
d. Check battery power
H. Advanced Troubleshooting
The S&S® ignition system features advanced self-diagnostic capabilities. The unit detects operational faults, and stores them as codes in memory.
There are two methods of retrieving trouble codes stored in memory. First, by counting Flash Codes, generated by the Check Engine light, (see
note) and second, by using a Code Reader (Scantool) connected to the data link connector of the S&S Ignition Wiring Harness. Flash codes allow
the mechanic to access the trouble code information without the use of a separate code reader, but are less specific than codes retrieved by a
code reader. Steps for using both methods are outlined below.
NOTES:
• Motorcycles that have an existing check engine light will use it to read stored codes. For motorcycles without check engine light, there is an
LED on the face of the ignition module that functions as a check engine light, and is used to read stored codes.
• Trouble codes are stored in memory for as long as the fault exists, and for 50 on/off cycles of the key after a fault is corrected. A code reader
(Scantool) has code clearing capability, and is the only way to clear trouble codes immediately after a fault has been corrected. If a fault still
exists, a new trouble code will be generated.
1. Overview of check engine light operation.
Initial start sequence.
The check engine light will flash in one of the three ways listed below each time the key is turned “on”, and the off/run switch is set to “run”
• If no faults are detected, the IST ignition will turn the check engine light “on” for 4 seconds, then “off”.
• If a fault is present at that time, the check engine light will turn “on” for four seconds, then turn “off” for four seconds, then turn “on”
continuously.
• If a fault has occurred and been corrected within the past 50 key on/off cycles, the check engine light will turn “on” for four seconds, then
“off” for four seconds, then “on” for eight seconds, then off.
When a fault is detected while the motorcycle is running, a code is stored in memory, and the check engine light comes on continuously.
2. Retrieving and displaying codes using the Check Engine light.
a. Turn key and off, and off/run switch to “off”
b. Remove seat or side cover to expose the OEM datalink connector, located near the ignition module.
c. Remove rubber plug from OEM datalink connector.
d. Connect pins “1” and “2” of the datalink connector with a jumper wire. Pins have to remain jumped together during the code retrieval
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