C1405-TRANSFER CASE RANGE POSITION SENSOR CIRCUIT HIGH
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For a complete wiring diagram, refer to the Wiring Information.
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When Monitored:
With the ignition on, battery voltage between 9.0 volts and 16.0 volts.
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Set Condition:
The Totally Integrated Power Module (TIPM) detects 5.0 volts on the Transfer Case Range Position Sensor Signal circuit for two seconds when voltage should not be present.
Possible Causes |
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| (T313) MODE SENSOR SIGNAL CIRCUIT OPEN |
| (K91) SENSOR GROUND CIRCUIT OPEN |
| (T313) MODE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| TRANSFER CASE (4WD) SWITCH |
| TOTALLY INTEGRATED POWER MODULE (TIPM) |
1. T-CASE POSITION SENSOR VOLTAGE ABOVE 4.8 VOLTS
| 1. | Ignition on, engine not running. |
| 2. | With the scan tool under TIPM, read the T-Case Position sensor voltage. |
Is the voltage above 4.8 volts?
Yes
- Go To 2
No
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Go To 7
2. (T313) MODE SENSOR SIGNAL CIRCUIT VOLTAGE
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| 1. | Turn the ignition off to the lock position. |
| 2. | Disconnect the Transfer Case (4WD) Switch harness connector. |
| 3. | Ignition on, engine not running. |
| 4. | Measure the voltage of the (T313) Mode Sensor Signal circuit and the (K91) Sensor Ground at the Transfer Case (4WD) Switch harness connector. |
Is the voltage between 4.8 volts and 5.2 volts?
Yes
- Replace the Transfer Case (4WD) Switch in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST.
No
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Go To 3
3. (T313) MODE SENSOR SIGNAL CIRCUIT OPEN
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| 1. | Turn the ignition off to the lock position. |
| 2. | Disconnect the TIPM C1 harness connector. |
| 3. | Measure the resistance of the (T313) Mode Sensor Signal circuit between the Transfer Case (4WD) Switch harness connector and the TIPM C1 harness connector. |
Is the resistance above 5.0 Ohms?
Yes
No
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Go To 4
4. (K91) SENSOR GROUND CIRCUIT OPEN
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| 1. | Measure the resistance of the (K91) Sensor Ground circuit between the Transfer Case (4WD) Switch harness connector and the TIPM C1 harness connector. |
Is the resistance above 5.0 Ohms?
Yes
No
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Go To 5
5. (T313) MODE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
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| 1. | Ignition on, engine not running. |
| 2. | Measure the voltage of the (T313) Mode Sensor Signal circuit at the Transfer Case (4WD) Switch harness connector. |
Is the voltage above 0.2 of a volt?
Yes
- Repair the (T313) Mode Sensor Signal circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST.
No
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Go To 6
6. (K91) SENSOR GROUND CIRCUIT SHORTED TO VOLTAGE
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| 1. | Measure the voltage of the (K91) Sensor Ground circuit at the Transfer Case (4WD) Switch harness connector. |
Is the voltage above 0.2 of a volt?
Yes
No
- Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
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Perform the BODY VERIFICATION TEST.
7. INTERMITTENT WIRING AND CONNECTORS
| 1. | The conditions necessary to set this DTC are not present at this time. |
| 2. | Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. |
| 3. | While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. |
| 4. | Look for the data to change or for the DTC to reset during the wiggle test. |
Were any problems found?
Yes
No