Guidance Needed for a Few DIC Codes
Thread Starter
Advanced
Joined: Dec 2013
Posts: 90
Likes: 9
From: Gaithersburg Maryland
Guidance Needed for a Few DIC Codes
I have a 1997 "garage queen". Its an auto, with no mods and has 41,000 miles. I have owned it 2 1/2 years and the previous owner had it for 13 years. (PO gave me most of the maintenance records for it.) Currently on the dash lit up is the "check engine light" and the "traction control/ABS light". The DIC has the message "Reduced Engine Power" and "Service TCS". The car runs poorly, when approaching a light it feels like it is going to stall out. In addition, I have a hard time getting it to 40 mph. I pulled the following DIC codes:
PCM
P1516H-Commands vs Actual Throttle Position Performace(TAC Module)
P1518H-PCM to TAC Module Serial Data Circuit
P1571H-ASR Desired Torque
TCS
C1226H-LF Excessive Wheel Speed Variation
C1278H-TCS Temporiarly Inhibited by PCM
LDCM
U1064H-Loss of Communication with BCM
RDCM
U1064H-Loss of Communication with BCM
At my age I don't turn wrenches, but I have a very trusted mechanic who does. Any guidance you could provide on the above codes would be much appreciated.
PCM
P1516H-Commands vs Actual Throttle Position Performace(TAC Module)
P1518H-PCM to TAC Module Serial Data Circuit
P1571H-ASR Desired Torque
TCS
C1226H-LF Excessive Wheel Speed Variation
C1278H-TCS Temporiarly Inhibited by PCM
LDCM
U1064H-Loss of Communication with BCM
RDCM
U1064H-Loss of Communication with BCM
At my age I don't turn wrenches, but I have a very trusted mechanic who does. Any guidance you could provide on the above codes would be much appreciated.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Start the engine. Enter the DIC and CLEAR ALL THE CODES (ENGINE RUNNING)!!
If you have DIC messages,,, PRESS and hold RESET until the messages clear and read and reset ALL the DTCs.
If any DTCs come right back, post those DTCs and we will help you sort the issue out.
Looks like you have a throttle by wire issue but, we will see..
BC
If you have DIC messages,,, PRESS and hold RESET until the messages clear and read and reset ALL the DTCs.
If any DTCs come right back, post those DTCs and we will help you sort the issue out.
Looks like you have a throttle by wire issue but, we will see..
BC
Thread Starter
Advanced
Joined: Dec 2013
Posts: 90
Likes: 9
From: Gaithersburg Maryland
Start the engine. Enter the DIC and CLEAR ALL THE CODES (ENGINE RUNNING)!!
If you have DIC messages,,, PRESS and hold RESET until the messages clear and read and reset ALL the DTCs.
If any DTCs come right back, post those DTCs and we will help you sort the issue out.
Looks like you have a throttle by wire issue but, we will see..
BC
If you have DIC messages,,, PRESS and hold RESET until the messages clear and read and reset ALL the DTCs.
If any DTCs come right back, post those DTCs and we will help you sort the issue out.
Looks like you have a throttle by wire issue but, we will see..
BC
Thanks for taking an interest.
Lou
ABSOLUTY 100%
Thread Starter
Advanced
Joined: Dec 2013
Posts: 90
Likes: 9
From: Gaithersburg Maryland
Had the battery checked and it showed only 12.4. Battery was slowly charged and seems to be holding the charge (battery is a little over 2 years old). Car drives fine and there are no lights lit up in the dash and no messages in the DIC. I have ordered the CTEK 3300 battery charger to keep the battery fully charged. BTW, I'am having trouble clearing the codes in the DIC. When I'am in manual mode and hit the reset button, the codes don't seem to clear. Any idea what I'am doing wrong?
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Had the battery checked and it showed only 12.4. Battery was slowly charged and seems to be holding the charge (battery is a little over 2 years old). Car drives fine and there are no lights lit up in the dash and no messages in the DIC. I have ordered the CTEK 3300 battery charger to keep the battery fully charged. BTW, I'am having trouble clearing the codes in the DIC. When I'am in manual mode and hit the reset button, the codes don't seem to clear. Any idea what I'am doing wrong?
