TROUBLESHOOTING FLASH CODE 33
Check Turbo Boost Sensor Connectors
Perform the following steps to check the TBS connectors.
1. Check terminals at the TBS connector (both sensor and harness side) for damage: bent,
corroded, and unseated pins or sockets. See Figure 33-5.
[a] If the terminals and connectors are damaged, repair them. Refer to section 33.3.8.
[b] If the terminals and connectors are not damaged, replace the TBS.
Refer to section 33.3.8.
Turbo Boost Sensor
Check for Short to +5 Volt Line
Perform the following steps to check for a short to the +5 volt line:
1. Turn vehicle ignition OFF.
2. Disconnect engine harness connector from the ECM.
3. Measure resistance between sockets P1 and W1 on the engine harness connector.
See Figure 33-6.
[a] If measured resistance is less than or equal to 10,000 , the signal line #432 is
shorted to the engine +5 volt line #416. Repair short. Refer to section 33.3.8.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION