Page 300 - 2006 HARLEY FLSTCI SERVICE MANUAL

5-81
ECM cavity 14 on
connector [88B]
Breakout Box.
Terminal 1 to
Repair open
in R/W wire.
TP sensor
resistance
Less than
Measure
1.0 ohm?
between
NO
NO
Low voltage or spikes observed. Unplug TP sensor connector [88B] and measure voltage between Terminal 1 (+) and Terminal 2 (-) with ignition ON. Is reading 4.8-5.0 volts? YES Disconnect ECM from Breakout Box. Check resistance between ECM cav- ity 24 on Breakout Box to chassis ground. Greater than 1 megohm? NO Find short to ground on GY/V signal wire. 2006 Softail: Engine Management (EFI)

NO YES Replace TP sensor. YES Repair open in BK/W wire. At some point in the flow chart you may be instructed to jump directly to a the box with the bold asterisk. Disregard the asterisk (but not the instruction box) if your normal pro- gression through the chart brings you to this location.
ally opening throttle. Does voltage increase steadily With ignition key ON, measure TP sensor voltage while gradu- with no spikes or low voltages from 0.2-0.8 volts at idle (closed throttle) to 4.0-4.9 volts at wide open throttle? Voltage is greater than 4.95 volts. STOP Go to Test 5.22 (Part 2 of 2). NO Perform 5.8 WIGGLE TEST to check for intermittents. Intermittents present? NO Replace TP sensor, clear codes and road test. Did check engine lamp illuminate and set DTC P0122 or P0123? NO YES System Install original OK. TP sensor, replace ECM (reprogram and learn password) a

2

Test 5.22 (Part 1 of 2) TP SENSOR: DTC P0122, P0123 1 YES Check engine lamp ON continuously and DTC P0122 or P0123 the only one set? YES YES Replace ECM. Reprogram and learn password. YES While wiggling harness, 2 start with the first step of Test 5.22 (Part 2 of 2) (marked by BOLD ASTER- ISK). Repair as necessary. Clear codes using speedometer self diagnostics. See Confirm proper operation with no check engine lamp.

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