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If your amber ABS lamp and the red "parking brake" warning lamp illuminate together without any prior pump constantly running problem; the pump motor wires are most likely broken.
The heat shrink tubing that seals the red/black power leads to the motor may have allowed water to enter. The copper conductor turns into a powdery green copper oxide over time due to electrolysis as a small current is applied to the motor all times (even when vehicle is off). The wires will look perfectly intact on the outside even though the copper conductor has been destroyed. The associated error codes will either be C0267 or C0268.
Initial problems will be an intermittent amber ABS and red BRAKE lamp illuminating simultaneously. Over time, the lamps will stay on constantly. In any of the circumstances, you have lost your ABS at all times... even when the lamps are off during the intermittent stage of the system failure.
Dealer specifies pump assembly must be replaced. Not necessary.
The wires can be resoldered to the motor terminal block and resealed with new heat shrink tubing and sensor safe silicone. Do not remove the motor from the pump housing as it is difficult to align the eccentric cam on the motor shaft with the pump mechanism.
This is a common problem that can be solved by resoldering the pump power leads. If the pump runs all the time and the red "BRAKE" lamp has illuminated after pulling the ABS fuse or unplugging the motor; the EBCM (ABS control module) will have to be rebuilt. This can be done for $100.
Both pump motor failure and EBCM failure can be repaired without costly replacement
P0300 is a random engine misfire code . could be a few different thing's causing this, low fuel pressure , low fuel volume , vacuum leak's , dirty fuel injectors . dirty fuel filter etc...
DTC C0267 or C0268 and C067 or C068 ( EBCM is the electronic brake control module )
The EBCM applies the ground needed for pump motor activation. The low side of the pump motor has a feedback circuit to the EBCM. When the pump motor is commanded OFF and at rest, feedback voltage is high. When the pump motor is winding down after being commanded ON and then OFF, feedback voltage is low. The EBCM monitors this feedback voltage in order to determine if the motor is functioning properly.
DTC C0281 or C081
The stop lamp switch signal informs the electronic brake control module (EBCM) when the brake pedal is pressed.
Do you fix cars for a living ? If not your best bet is have a qualified repair shop fix it !
An the auto parts stores just want to sell you a part , just because the code has a sensor name does not mean the part is bad , all sensors have two or three wire's , all coming from the PCM/ECM - engine computer . The electrical circuit could have a open , short to ground , a short to B+ power . The PCM could have a problem . Never change parts without testing . An if that's all you can do , then you need to take it to a qualified repair shop .
DTC C0267 or C0268
Pump Motor Circuit Open/Shorted ABS problem
Front Wheel Speed Sensor Circuit ABS problem
DTC U1000 and U1255
Class 2 Communication Malfunction Do you know what class 2 is ?
HO2S Heater Performance Bank 1 Sensor 2
Evaporative Emission (EVAP) System
Theft Deterrent Fuel Disable Signal Received
Transmission Range (TR) Switch Circuit
The transmission range (TR) switch is part of the park/neutral position and back-up lamp switch assembly and is externally mounted on the transmission manual shaft. The TR switch is a multi-signal switch. The PCM supplies ignition voltage to the TR switch on four signal circuits (A, B, C, and P). Each gear selector lever position grounds one or more of the switch circuits. In order to determine the gear range selected by the driver, the PCM compares the voltage combinations on the signal circuits to a look up table stored in the PCM memory. PCM detects the selected gear range by the state change of the switch input. Refer to Transmission Range Switch Logic table.
Switch input to the PCM is represented on the scan tool as HI and LOW. HI indicates an ignition voltage signal. LOW indicates a zero voltage signal. The four parameters represent transmission range switch signal A, B, C and Parity.
When the PCM detects an invalid TR switch signal combination, then DTC P0705 sets. DTC P0705 is a type C DTC.
From reading your post an my years of experince your best bet would be to take to a qualified repair shop . You do not have the knowlede or tool's to fix these problems .
Install a Scan Tool .
Turn ON the ignition, with the engine OFF.
Select TR Sw. on the Scan Tool .
With the Scan Tool , observe the TR Sw. display while selecting each transmission range: P, R, N, D3, D2 and D1.
Does each selected transmission range match the Scan Tool TR Sw. display?
Go to Intermittent Conditions in Engine Controls - 2.2 L
Go to Step 3
ABS on ? DTC'S - diagnostic trouble code's are probably stored in the ABS control module . 4X4 an ABS are not related . To fix , take it to a qualified repair shop.
SERVICE 4WD: Refer to Transfer Case Circuit Description in
Transfer Case Shift Control Module
The transfer case shift control module uses the VIN information for calculations that are required for the different calibrations used based on axle ratio, transmission, tire size, and engine. The system does not know which calibration to use without this information. The transfer case shift control module monitors the speed of the front and rear propshafts in order to detect wheel slippage. When wheel slippage is detected, the module applies a clutch pack contained in side the transfer case. This clutch pack is used to lock-in and apply the front propshaft, transferring torque to the front wheels. The clutch pack is applied by a motor/encoder assembly. When slip is no longer detected by the transfer case shift control module, the clutch is no longer applied.
These are all code's for 4X4 Do you know what a DTC is ? diagnostic trouble code
DTC C0221-C0227 or C021
DTC C0229 or C029
DTC C0235-C0237, C035-C037, or P1504
DTC C0238 or C038
DTC C0241-C0254 or C041-C054
DTC C0265 or C0266 and C065 or C066
DTC C0267 or C0268 and C067 or C068
DTC C0269 or C0274 and C069 or C074
DTC C0271-C0273, C0284
DTC C0281 or C081
DTC C0283 (w/NW7)
DTC C0287, P1644, or P1689
DTC C0290 or C0292
DTC C0298 or P1571