11.3
TROUBLESHOOTING FLASH CODE 11
11.3.6
Check for +5 volts
Perform the following steps to check for +5 volts:
1. Turn ignition ON.
2. Enable VSG. Refer to OEM guidelines.
3. Measure voltage on the hand throttle sensor harness connector, socket C (5V #916, red
lead) to socket A (return #952, black lead). See Figure 11-3.
[a] If the voltage reading is between 4 to 6 volts, refer to section 11.3.7.
[b] If the voltage reading is greater than 6 volts, refer to section 12.1.
[c] If the voltage reading is less than 4 volts, refer to section 11.3.10.
Figure 11-3
Variable Speed Governor Circuit
11.3.7
Check for Short
Perform the following steps to check for a short:
1. Turn ignition OFF.
2. Disconnect the vehicle harness connector at the ECM.
3. Enable VSG. Refer to OEM guidelines.
4. Measure resistance between sockets A (return #952) and B (signal #525) on the hand
throttle sensor harness connector. For VSG circuit, see Figure 11-4.
[a] If the resistance is greater than 1,000
or open, refer to section 11.3.8.
All information subject to change without notice.
11-8
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
