WHYASK

B1325
PO128
B1480

Took i to the dealer, cleared them and he said it might be cause of not letting her warm up. Now i trust my guys at the dealer one of the vette techs is a close War buddy. BUT . Should i still be worried......codes came back today while starting her up on base. Any help would be great thanks guys..
Its an 05' vert with 75k on the clock.

-BIG SARGE

ByByBMW

B1325 - Door Ajar Lamp Circuit Short To Battery
B1480 - Battery rundown protection
P0128 - This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat. Similar codes: P0125

I don't see the first two as having anything to do with not letting her warm up. The last one could indicate a stuck open thermostat and at 75K that could be quite possible. Good luck

ChevyDave

B1325 is for a voltage being above/below specification (B1325 Device Power 1 Circuit Voltage BCM)
P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
B1480 Battery Rundown Protection Circuit BCM

http://www.hotcaraccessories.com/Eng...20for%20C6.htm

got these and saved for my C6 incase i needed for myself

Snake.Oiler

Curious, I would check for wires that may have been chewed. Rodents do seem to like them.

WHYASK

Wow thanks guys so I guess will start with the easiest and replace the thermostat and go from there ?? Checked the entire car under inside and over no chewed wires anywhere

ChevyDave

might have battery tested first, low voltage can cause odd errors. cheap to-do , unless your positive its good/new

WHYASK

Again, thank you everyone for the quick response another win for the forum. Battery tested this morning its all gravy, just ordered a 160 stat and my tuner , you know just to play it safe

TJay74

Does the car have a 160° thermostat, if so it will trigger that code. you have to turn that code off if you run a 160° thermostat due to winter temps causing the coolant to not reach the required temp with in soo many drive cycles.

WHYASK

As of right now it dosnt, the car is bone stock save for the exhaust which is just Z06 header back

TJay74

Then sounds like the thermostat is stuck open, easy repair takes about 30 minutes to replace one.

WHYASK

Thanks guys ! New weekend project

Gary '09 C6

WHYASK, also check this thread...discussion of the 160* thermostat and related code/programming work needed...

good luck !

Gary

http://forums.corvetteforum.com/c6-c...ot-engine.html

WHYASK

Gary,
Thanks for the link. Much appriciated !

C6ToGo

B1480 Circuit/System Description
The CTSY/LAMP fuse supplies battery voltage to the body control module (BCM). The BCM applies battery voltage to the courtesy lamps through the courtesy lamp supply voltage circuit. When any door is opened, the jam switch contacts close and the BCM receives a door-open input. If the BCM receives a door lock or unlock input or a rear hatch open input, the BCM will activate the courtesy lamp supply voltage circuit, providing battery voltage to all of the instrument panel (I/P) courtesy lamps, rearview mirror lamps, and rear compartment lamps. The BCM also provides a class 2 serial data message to the driver door module (DDM) and passenger door module (PDM) to apply battery voltage to the exterior courtesy lamps. In the event that any of these lamps were to remain illuminated for more than 10 minutes with the ignition switch in the OFF position, the BCM will deactivate the courtesy lamp supply voltage circuit to prevent a total battery discharge condition. For more detailed information concerning courtesy lamp operation refer to Interior Lighting Systems Description and Operation .

Conditions for Running the DTC
Battery voltage must be between 9-16 volts.

Conditions for Setting the DTC
DTC B1480 will set when the courtesy lamp supply voltage circuit that feeds the courtesy lamps, underhood lamp, IP compartment lamp, console lamp and both visor vanity mirror lamps is shorted to ground for longer than 1 second.

Actions Taken When the DTC Sets
The courtesy lamps, underhood lamp, I/P compartment lamp, and both visor vanity mirror lamps will not operate.



P0128 - Circuit/System Description
The engine coolant temperature (ECT) sensor is a variable resistor that measures the temperature of the engine coolant. The engine control module (ECM) supplies 5 volts to the ECT sensor signal circuit and supplies a ground to the low reference circuit.

The purpose of this diagnostic is to analyze the performance of the thermostat by using the ECT sensor to determine if the engine coolant will increase at the correct rate, and also to meet the calibrated target temperatures under various operating conditions.

The ECM uses the start-up ECT and the start-up intake air temperature (IAT) to begin the diagnostic calculation. The air flow into the engine is accumulated, and vehicle speed, distance, and engine run time are also factored in, to determine if the ECT does increase normally, and reach the calibrated target temperatures.

Conditions for Running the DTC
• DTCs P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0171, P0172, P0174, P0175, P0502, P0503 are not set.

• The start-up IAT is more than -7°C (+19°F).

• The start-up ECT is less than 70°C (158°F), when the IAT is above 10°C (50°F).

• The start-up ECT is less than 50°C (122°F), when the IAT is below 10°C (50°F).

• The engine run time is between 90 seconds and 22 minutes.

• The vehicle has traveled more than 2.4 kilometers (1.5 miles) at more than 8 km/h (5 mph).

• The accumulated airflow is between 20-75 g/s, with the minimum average airflow more than 10 g/s.

• The fuel ethanol percentage is less than 85 percent.

• This DTC runs once per ignition cycle within the enabling conditions.

Conditions for Setting the DTC
The ECM detects that the minimum ECT of 75°C (167°F) has not been met, when the IAT is more than 10°C (50°F).

OR

The ECM detects that the minimum ECT of 55°C (131°F) has not been met, when the IAT is less than 10°C (50°F).

B1325 - Circuit Description
The body control module (BCM) monitors the battery voltage through the Battery Voltage Signal circuit. Refer to Body Control System Schematics .

A type information accompanies the DTC. Refer to DTC Symptom Description .

DTC Descriptor
This diagnostic procedure supports the following DTC:

DTC B1325 Device Power 1 Circuit Voltage

Conditions for Running the DTC
The voltage supplied to the BCM is in the range of 7-26 volts.

Conditions for Setting the DTC
DTC B1325 03
• The BCM detects a system voltage below 9 volts.

• The above condition is present at least 5 seconds.

DTC B1325 07
• The BCM detects a system voltage above 18 volts.

• The above condition is present at least 5 seconds.

Action Taken When the DTC Sets
• The BCM immediately disables all outputs when a high voltage condition was detected, with the exception of GMLAN and Run/Crank relay that are disabled after a 3 minutes delay.

• The setting of other DTCs is inhibited.

WHYASK

DEAR GOD MAN !! Lol thanks !!

Maypo

Where do you get that info?