P1516 - No start - Engine Reduce Mode
09-15-2012, 05:42 PM
#1
Instructor
Thread Starter
P1516 - No start - Engine Reduce Mode
My car shut down suddently:
Engine reduce mode. It don't start anymore.
No more Fuel Pump noise.
[] P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance (SES) (Pending) (Old) (History) (Current) (Immature)
[] P2101 - Throttle Actuator Control Motor Circuit Range/Performance (SES) (Pending) (Old) (History) (Current) (Immature)
[] P2119 - Throttle Actuator Control Throttle Body Range/Performance (Pending) (Old) (History) (Current) (Immature)
[] P2101 - Throttle Actuator Control Motor Circuit Range/Performance
[] P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator
Position Performance
I've swapped the TB, same result.
Do you have some idea ? bad / dead / PCM ?
I can still read/flash the PCM with hptuners.
Engine reduce mode. It don't start anymore.
No more Fuel Pump noise.
[] P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance (SES) (Pending) (Old) (History) (Current) (Immature)
[] P2101 - Throttle Actuator Control Motor Circuit Range/Performance (SES) (Pending) (Old) (History) (Current) (Immature)
[] P2119 - Throttle Actuator Control Throttle Body Range/Performance (Pending) (Old) (History) (Current) (Immature)
[] P2101 - Throttle Actuator Control Motor Circuit Range/Performance
[] P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator
Position Performance
I've swapped the TB, same result.
Do you have some idea ? bad / dead / PCM ?
I can still read/flash the PCM with hptuners.
09-17-2012, 02:31 PM
#2
Supporting Vendor
Member Since: Nov 2011
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My car shut down suddently:
Engine reduce mode. It don't start anymore.
No more Fuel Pump noise.
[] P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance (SES) (Pending) (Old) (History) (Current) (Immature)
[] P2101 - Throttle Actuator Control Motor Circuit Range/Performance (SES) (Pending) (Old) (History) (Current) (Immature)
[] P2119 - Throttle Actuator Control Throttle Body Range/Performance (Pending) (Old) (History) (Current) (Immature)
[] P2101 - Throttle Actuator Control Motor Circuit Range/Performance
[] P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator
Position Performance
Check the connection at the gas pedal for bad contacts.
I've swapped the TB, same result.
Do you have some idea ? bad / dead / PCM ?
I can still read/flash the PCM with hptuners.
Engine reduce mode. It don't start anymore.
No more Fuel Pump noise.
[] P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance (SES) (Pending) (Old) (History) (Current) (Immature)
[] P2101 - Throttle Actuator Control Motor Circuit Range/Performance (SES) (Pending) (Old) (History) (Current) (Immature)
[] P2119 - Throttle Actuator Control Throttle Body Range/Performance (Pending) (Old) (History) (Current) (Immature)
[] P2101 - Throttle Actuator Control Motor Circuit Range/Performance
[] P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator
Position Performance
Check the connection at the gas pedal for bad contacts.
I've swapped the TB, same result.
Do you have some idea ? bad / dead / PCM ?
I can still read/flash the PCM with hptuners.
09-17-2012, 03:42 PM
#3
Instructor
Thread Starter
I have checked it.
The pedal sensor is okay. (I see changes with the scanner)
When I move the TB with my hand, I see the changes with the scanner.
The TB doesn't move on accessory mode.
I can't control the fans with the scanner.
There is no fuel pump noise on accessory mode.
The pedal sensor is okay. (I see changes with the scanner)
When I move the TB with my hand, I see the changes with the scanner.
The TB doesn't move on accessory mode.
I can't control the fans with the scanner.
There is no fuel pump noise on accessory mode.
09-17-2012, 04:40 PM
#5
Instructor
Thread Starter
The TAC in included is the PCM for C6 ?
I've read it's a second processor in the PCM.
In the C5, the TAC was a separate module.
Is it right ?
12-22-2019, 06:36 PM
#7
Do you have aftermarket Intake? My car went into limp mode/ reduced power because I had a bolt come loose in the intake snout and when the throttle body flap would hit and throw it into limp mode
11-05-2020, 08:34 PM
#9
My car shut down suddently:
Engine reduce mode. It don't start anymore.
No more Fuel Pump noise.
P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance (SES) (Pending) (Old) (History) (Current) (Immature)
P2101 - Throttle Actuator Control Motor Circuit Range/Performance (SES) (Pending) (Old) (History) (Current) (Immature)
P2119 - Throttle Actuator Control Throttle Body Range/Performance (Pending) (Old) (History) (Current) (Immature)
P2101 - Throttle Actuator Control Motor Circuit Range/Performance
P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator
Position Performance
I've swapped the TB, same result.
Do you have some idea ? bad / dead / PCM ?
I can still read/flash the PCM with hptuners.
Engine reduce mode. It don't start anymore.
No more Fuel Pump noise.
P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance (SES) (Pending) (Old) (History) (Current) (Immature)
P2101 - Throttle Actuator Control Motor Circuit Range/Performance (SES) (Pending) (Old) (History) (Current) (Immature)
P2119 - Throttle Actuator Control Throttle Body Range/Performance (Pending) (Old) (History) (Current) (Immature)
P2101 - Throttle Actuator Control Motor Circuit Range/Performance
P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator
Position Performance
I've swapped the TB, same result.
Do you have some idea ? bad / dead / PCM ?
I can still read/flash the PCM with hptuners.