P2838 Possible Causes

• Outdated Transmission Control Module (TCM) program (reprogram TCM)
• Faulty Transmission Control Module (TCM)
• Defective transmission assembly

How to Fix Code P2838

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Engine light on (or service engine soon warning light)

P2838 Meaning

There are two electric motors used for shifting gears in the transmission, one for gears 1-3-5 and one for gears R-2-4-6. The gear shift is performed by two shift drums connected to the shift motor pinion via two ideal gears. The maximum shifting force is 1500 N (337 lb). The motors are integrated into the Transmission Control Module (TCM) and operate independently of each other.

P2847 Possible Causes

• Outdated Transmission Control Module (TCM) programming (reprogram TCM)
• Faulty Transmission Control Module (TCM)
• Defective transmission assembly

How to Fix P2847 Code

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P2847 Meaning

There are two electric motors used for shifting gears in the transmission, one for gears 1-3-5 and one for gears R-2-4-6. The gear shift is performed by two shift drums connected to the shift motor pinion via two ideal gears. The maximum shifting force is 1500 N (337 lb). The motors are integrated into the Transmission Control Module (TCM) and operate independently of each other.

P2837 Possible Causes

• Outdated Transmission Control Module (TCM) software (reprogram TCM)
• Faulty Transmission Control Module (TCM)
• Defective transmission assembly

How to Fix P2837 Code

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P2837 Meaning

There are two electric motors used for shifting gears in the transmission, one for gears 1-3-5 and one for gears R-2-4-6. The gear shift is performed by two shift drums connected to the shift motor pinion via two ideal gears. The maximum shifting force is 1500 N (337 lb). The motors are integrated into the Transmission Control Module (TCM) and operate independently of each other.

P2846 Possible Causes

• Outdated Transmission Control Module (TCM) program (reprogram TCM)
• Faulty Transmission Control Module (TCM)
• Defective transmission assembly

How to Fix P2846 Code

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P2846 Meaning

There are two electric motors used for shifting gears in the transmission, one for gears 1-3-5 and one for gears R-2-4-6. The gear shift is performed by two shift drums connected to the shift motor pinion via two ideal gears. The maximum shifting force is 1500 N (337 lb). The motors are integrated into the Transmission Control Module (TCM) and operate independently of each other.

P2836 Possible Causes

• Outdated Transmission Control Module (TCM) program (reprogram TCM)
• Faulty Transmission Control Module (TCM)
• Defective transmission assembly

How to Fix Code P2836

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check Engine Light on (or Service Engine Soon warning light)

P2836 Meaning

There are two electric motors used to change gears in the transmission, one for gears 1-3-5 and one for gears R-2-4-6. The gear shift is performed by two shift drums connected to the shift motor pinion via two ideal gears. The maximum shifting force is 1500 N (337 lb). The motors are integrated into the Transmission Control Module (TCM) and operate independently of each other.

P2853 Possible Causes

• Low Brake Solenoid Valve
• Control Valve Assembly

How to Fix Code P2853

Check the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check Engine Light illuminated (or Service Engine Soon warning light)

P2853 Meaning

The clutch pressure control solenoid is controlled by signals from switches and sensors. Thus, the clutch pressure is adjusted to be appropriate for the engine load condition and the vehicle driving condition. It becomes possible to finely control the clutch hydraulic pressure with high precision, and a smoother shifting characteristic is achieved.

P2854 Possible Causes

• High clutch and rear brake solenoid valve
• Control valve assembly

How to Fix Code P2854

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Engine light on (or service engine soon warning light)

P2854 Meaning

The clutch pressure control solenoid is controlled by signals from switches and sensors. Thus, the clutch pressure is adjusted to be appropriate for the engine load condition and the vehicle driving condition. It becomes possible to finely control the clutch hydraulic pressure with high precision, and a smoother shifting characteristic is achieved.

P2855 Possible Causes

• Low brake solenoid valve
• Control valve assembly

How to Fix Code P2855

Check the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P2855 Meaning

The clutch pressure control solenoid is controlled by signals from switches and sensors. Thus, the clutch pressure is adjusted to be appropriate for the engine load condition and the vehicle driving condition. It becomes possible to finely control the clutch hydraulic pressure with high precision, and a smoother shifting characteristic is achieved.

P2856 Possible Causes

• High clutch and rear brake solenoid valve
• Control valve assembly

How to Fix Code P2856

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Engine light on (or service engine soon warning light)

P2856 Meaning

The clutch pressure control solenoid is controlled by signals from switches and sensors. Thus, the clutch pressure is adjusted to be appropriate for the engine load condition and the vehicle driving condition. It becomes possible to finely control the clutch hydraulic pressure with high precision, achieving a smoother shifting characteristic.

P2857 Possible Causes

• Low Brake Solenoid Valve
• Control Valve Assembly

How to Fix Code P2857

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Symptoms

Possible

Check Engine Light On (or Service Engine Soon Warning Light)

P2857 Meaning

The clutch pressure control solenoid is controlled by signals from switches and sensors. Thus, the clutch pressure is adjusted to be appropriate for the engine load condition and the vehicle driving condition. It becomes possible to finely control the clutch hydraulic pressure with high precision, and a smoother shifting characteristic is achieved.