Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2009COMMANDER SPORT, 3.7 K, AWDREPAIR AND DIAGNOSISDRIVELINES & AXLESDIFFERENTIALS & DRIVE AXLES(FINAL DRIVE CONTROL MODULE (FDCM) - ELECTRICAL DIAGNOSTICS)DIAGNOSTIC CODE INDEX
2009 Jeep Commander Sport, 3.7 K, AWD
Diagnostic Code Index
2009 Jeep Commander Sport, 3.7 K, AWDSECTION Diagnostic Code Index
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| C1400 | TRANSFER CASE RANGE SELECT SWITCH PERFORMANCE |
| C1401 | TRANSFER CASE RANGE SELECT SWITCH CIRCUIT LOW |
| C1402 | TRANSFER CASE RANGE SELECT SWITCH CIRCUIT HIGH |
| C1403 | TRANSFER CASE RANGE POSITION SENSOR PERFORMANCE |
| C1404 | TRANSFER CASE RANGE POSITION SENSOR CIRCUIT LOW |
| C1405 | TRANSFER CASE RANGE POSITION SENSOR CIRCUIT HIGH |
| C1406 | TRANSFER CASE BRAKE PERFORMANCE |
| C1407 | TRANSFER CASE BRAKE CONTROL CIRCUIT LOW |
| C1408 | TRANSFER CASE BRAKE CONTROL CIRCUIT HIGH |
| C140A | TRANSFER CASE MOTOR PERFORMANCE |
| C140D | TRANSFER CASE MOTOR CONTROL CIRCUIT OPEN |
| C140E | TRANSFER CASE MOTOR BLOCKED |
| C140F | TRANSFER CASE RANGE POSITION SENSOR ERRATIC PERFORMANCE |
| C1413 | 4 HI/LO SELECT SWITCH CIRCUIT STUCK |
| C1414 | NEUTRAL SELECT SWITCH CIRCUIT STUCK |
| C1415 | TRANSFER CASE MOTOR CURRENT PERFORMANCE |
| C1417 | FRONT DIFFERENTIAL CONTROL CIRCUIT LOW |
| C1418 | FRONT DIFFERENTIAL CONTROL CIRCUIT HIGH |
| C141A | FRONT DIFFERENTIAL CONTROL CIRCUIT CURRENT PERFORMANCE |
| C141B | FRONT DIFFERENTIAL CLUTCH PERFORMANCE |
| C141D | REAR DIFFERENTIAL CONTROL CIRCUIT LOW |
| C141E | REAR DIFFERENTIAL CONTROL CIRCUIT HIGH |
| C1420 | REAR DIFFERENTIAL CONTROL CIRCUIT CURRENT PERFORMANCE |
| C1421 | REAR DIFFERENTIAL CLUTCH PERFORMANCE |
| C1438 | TRANSFER CASE DIFFERENTIAL CLUTCH WORN |
| C1444 | TRANSFER CASE MOTOR OVERUSE |
| C2100 | BATTERY VOLTAGE LOW |
| C2101 | BATTERY VOLTAGE HIGH |
| C2109 | DRIVETRAIN SUPPLY VOLTAGE CIRCUIT LOW |
| C2111 | DRIVETRAIN SENSOR SUPPLY CIRCUIT LOW |
| C2112 | DRIVETRAIN SENSOR SUPPLY CIRCUIT HIGH |
| C2113 | DRIVETRAIN SENSOR SUPPLY VOLTAGE CIRCUIT OPEN |
| C2201 | INTERNAL CONTROLLER |
| C2206 | CONFIGURATION ERROR |
| C230A | NEUTRAL INDICATOR CONTROL CIRCUIT LOW |
| C230B | NEUTRAL INDICATOR CONTROL CIRCUIT HIGH |
| U0401 | IMPLAUSIBLE DATA RECEIVED FROM ECM (FDCM) |
| U0402 | IMPLAUSIBLE DATA RECEIVED FROM TCM |
| U0415 | IMPLAUSIBLE DATA RECEIVED FROM ABS |
| U0429 | IMPLAUSIBLE DATA RECEIVED FROM SCM |
| U0431 | IMPLAUSIBLE DATA RECEIVED FROM FCM |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.