what causes the "Reduced Engine Power " code u0107 - possible causes?

larrys40
0

Asked by larrys40 Feb 14, 2014 at 11:19 PM about the 2007 Pontiac Grand Prix Base

Question type: Maintenance & Repair

this is intermittent.  You can be driving at various speeds.. or just trying to start the car 3.8 2007 GRand Prix  Possible causes?

1 Answer

Rob Jones
95

DTC U0107 sets if the battery voltage is low. If the customer's concern is slow cranking or no crank because battery voltage is low, ignore DTC U0107. Clear any DTCs from memory that may have set from the low battery voltage condition. DTC U0107 sets when there is a short to B+ on the TAC module ground circuit. Inspect the fuses for the circuits that are in the TAC module harness--i.e. cruise, brake. An inspection of the fuses may lead you to the circuit that is shorted to the TAC module ground circuit. DTC U0107 sets if the TAC module ignition feed circuit is shorted to a B+ supply circuit. The TAC module stays powered-up when the ignition switch is turned OFF. When the ignition switch is turned ON, the TAC module is powered-up before the PCM. DTC U0107 sets because no communication is detected by the TAC module from the PCM. Inspect related circuits for being shorted to a B+ supply circuit. Inspect the TAC module power and ground circuits and the TAC module/PCM serial data circuits for intermittent connections. Inspect the TAC module connectors for signs of water intrusion. If water intrusion occurs, multiple DTCs may set without any circuit or component conditions found during diagnostic testing.

Your Answer

Add photo

Related Questions

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 1,590
#2 Tom Demyan
Tom Demyan
Reputation 1,260
#3 John Saffrahn
John Saffrahn
Reputation 900
View All

Related Models For Sale

Used Chevrolet Impala"
2,059 Great Deals out of 56,301 listings starting at $995
Used Pontiac Grand Am"
62 Great Deals out of 2,568 listings starting at $1,200
Used Pontiac G6"
450 Great Deals out of 8,064 listings starting at $2,499
Used Pontiac G8"
41 Great Deals out of 567 listings starting at $8,995
Used Dodge Charger"
818 Great Deals out of 31,519 listings starting at $2,950
Used Chevrolet Monte Carlo"
73 Great Deals out of 2,561 listings starting at $1,595
Used Nissan Altima"
1,910 Great Deals out of 77,821 listings starting at $1,100
Used Ford Mustang"
1,085 Great Deals out of 24,759 listings starting at $1,625
Used Pontiac GTO"
14 Great Deals out of 400 listings starting at $7,900
Used Chevrolet Malibu"
1,924 Great Deals out of 67,955 listings starting at $1,200
Used Nissan Maxima"
723 Great Deals out of 20,131 listings starting at $1,000
Used Chrysler 300"
758 Great Deals out of 21,436 listings starting at $2,500
Used Honda Accord"
1,598 Great Deals out of 65,603 listings starting at $800

Used Cars For Sale

2008 Pontiac Grand Prix Base For Sale
33 Great Deals out of 617 listings starting at $3,500
2007 Pontiac Grand Prix Base For Sale
33 Great Deals out of 528 listings starting at $2,999
2006 Pontiac Grand Prix Base For Sale
24 Great Deals out of 564 listings starting at $1,999
2005 Pontiac Grand Prix Base For Sale
12 Great Deals out of 321 listings starting at $2,753