Tire Pressure Module (Tpm) - Electrical Diagnostics: Other RAM Pickup 2500

When Monitored

Continuously.

Set Condition

Any time the Tire Pressure Monitoring (TPM) Module senses voltage input below 8.0 volts for over 20 ms, this code will set.

Possible Causes

Note. Check for and remove any non-FCC compliant components before beginning this diagnostic procedure.

Scheme 38

Scheme 39

1. CHECK POWERTRAIN CONTROL MODULE (PCM) DTCs NOTE: Make sure the battery is fully charged before proceeding. Ignition on, engine not running. With the scan tool, read PCM DTCs. Are there any battery or charging systems DTCs? Yes Refer to appropriate DIAGNOSTIC CODE INDEX article and perform the appropriate diagnostic procedure. . No Go To 2 .
2. VERIFY THE DTC IS ACTIVE With the scan tool, record and erase stored DTCs. Start the engine and run for two minutes. With the scan tool, read DTCs. Is the DTC active at this time? Yes Go To 3 . No Go To 5 .
3. (A27) FUSED B(+) CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off to the lock position Disconnect the TPM Module harness connector. Ignition on, engine not running. Using a 12-volt test light connected to ground, check (A27) Fused B(+) circuit in the TPM Module harness connector. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes Go To 4 . No Repair the (A27) Fused B(+) circuit for an open or high resistance. Perform the TPM VERIFICATION TEST. Refer to «Standard Procedure»(ref-457858-S03993704192012030200000) .
4. (Z906) GROUND CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off to the lock position Using a 12-volt test light connected to 12-volts, check the (Z906) Ground circuit in the TPM Module harness connector. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes Replace the Tire Pressure Monitoring (TPM) Module in accordance with Service Information. Refer to «MODULE, Tire Pressure Monitoring (TPM) , Removal»(ref-457774-S30782043552012030200000) . Perform the TPM VERIFICATION TEST. Refer to «Standard Procedure»(ref-457858-S03993704192012030200000) . No Repair the (Z906) Ground circuit for an open or high resistance. Perform the TPM VERIFICATION TEST. Refer to «Standard Procedure»(ref-457858-S03993704192012030200000) .
5. INTERMITTENT WIRING AND CONNECTORS Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle test the wiring harness and connectors while monitoring the scan tool data relative to this circuit. Look for the data to change or for the DTC to reset during the wiggle test. While monitoring the scan tool data relative to this circuit. Look for the data to change other than as expected or for the DTC to reset. Were any problems found? Yes Repair as necessary. Perform the TPM VERIFICATION TEST. Refer to «Standard Procedure»(ref-457858-S03993704192012030200000) . No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.

Continuously.

Any time the Tire Pressure Monitoring (TPM) Module senses voltage input above 16.0 volts for over 20ms, this code will set.

Note. Check for and remove any non-FCC compliant components before beginning this diagnostic procedure.

B21DD-84-SYSTEM VOLTAGE - SIGNAL VOLTAGE BELOW ALLOWABLE RANGE

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

Continuously.

Anytime the Tire Pressure Monitoring (TPM) Module senses voltage input below 8.0 volts for over 20 ms, this code will set.

Note. Check for and remove any non-FCC compliant components before beginning this diagnostic procedure.

B21DD-85-SYSTEM VOLTAGE - SIGNAL ABOVE ALLOWABLE RANGE

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

Continuously.

Any time the Tire Pressure Monitoring (TPM) Module senses voltage input above 16.0 volts for over 20ms, this code will set.

Note. Check for and remove any non-FCC compliant components before beginning this diagnostic procedure.

Continuously while driving.

A low pressure condition will exist when the tire pressure falls below or is equal to the low pressure threshold value as specified for the vehicle.

Note. Check for and remove any non-FCC compliant components before beginning this diagnostic procedure.

Note. Adjust all tired to cold placard values and test drive before continuing with diagnostic procedure.

With vehicle speed greater than 24 km/h (15 mph).

The TPM Module will monitor the signals from the four active road tire TPM Sensors. A loss of RF signal error is detected if data is not received or cannot be accurately decoded for a maximum of 20 minutes when the vehicle speed is above 24 km/h (15 mph). An internal sensor hardware error condition will be set when an error in the shock sensor, pressure sensor, or temperature sensor is detected. The Tire Pressure Monitoring Telltale Lamp will flash on and off for 75 seconds then remain on solid when a system fault is detected.

Note. Check for and remove any non-FCC compliant components, and verify that the tire pressures are correct, before beginning this diagnostic procedure.

With vehicle speed greater than 24 km/h (15 mph).

The TPM Module will monitor the signals from the four active road tire TPM Sensors. A loss of RF signal error is detected if data is not received or cannot be accurately decoded for a maximum of 20 minutes when the vehicle speed is above 24 km/h (15 mph). An internal sensor hardware error condition will be set when an error in the shock sensor, pressure sensor, or temperature sensor is detected. The Tire Pressure Monitoring Telltale Lamp will flash on and off for 75 seconds then remain on solid when a system fault is detected.

Note. Check for and remove any non-FCC compliant components, and verify that the tire pressures are correct, before beginning this diagnostic procedure.

With vehicle speed greater than 24 km/h (15 mph).

The TPM Module will monitor the signals from the four active road tire TPM Sensors. A loss of RF signal error is detected if data is not received or cannot be accurately decoded for a maximum of 20 minutes when the vehicle speed is above 24 km/h (15 mph). An internal sensor hardware error condition will be set when an error in the shock sensor, pressure sensor, or temperature sensor is detected. The Tire Pressure Monitoring Telltale Lamp will flash on and off for 75 seconds then remain on solid when a system fault is detected.

Note. Check for and remove any non-FCC compliant components, and verify that the tire pressures are correct, before beginning this diagnostic procedure.

With vehicle speed greater than 24 km/h (15 mph).

The TPM Module will monitor the signals from the four active road tire TPM Sensors. A loss of RF signal error is detected if data is not received or cannot be accurately decoded for a maximum of 20 minutes when the vehicle speed is above 24 km/h (15 mph). An internal sensor hardware error condition will be set when an error in the shock sensor, pressure sensor, or temperature sensor is detected. The Tire Pressure Monitoring Telltale Lamp will flash on and off for 75 seconds then remain on solid when a system fault is detected.

Note. Check for and remove any non-FCC compliant components, and verify that the tire pressures are correct, before beginning this diagnostic procedure.

C151C-00-TIRE PRESSURE SENSORS MISSING

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

During vehicle TPM Sensor ID locate process.

When installing a new Tire Pressure Monitoring (TPM) Module.

Note. Check for and remove any non-FCC compliant components before beginning this diagnostic procedure.

During vehicle TPM Sensor locate process.

Must fail multiple vehicle TPM Sensor locate processes if localization fails due to Left/Right fail or Front/Rear fail or if the TPM Module is new and has never attempted localization. If missing TPM Sensors are present on first drive, C151D will set to show that the TPM Sensor location cannot be determined/guaranteed (cannot revert to last known good locations).

During vehicle TPM Sensor locate process.

Must fail multiple vehicle TPM sensor locate processes if localization fails due to Left/Right fail or if the TPM module is new and has never attempted localization.

Note. Check for and remove any non-FCC compliant components before beginning this diagnostic procedure.

Note. The vehicle must remain stationary for 20 minutes before proceeding with this diagnostic procedure.

During vehicle TPM Sensor locate process.

Must fail multiple vehicle TPM sensor locate processes if localization fails due to Front/Rear fail or if the TPM module is new and has never attempted localization.

Note. Check for and remove any non-FCC compliant components before beginning this diagnostic procedure.

During vehicle TPM Sensor locate process.

For BUX/Canada vehicles only where all four TPM Sensors fail the locate processes at the same time because the TPM sensors are not installed on winter tire and wheel assemblies.

Note. Check for and remove any non-FCC compliant components before beginning this diagnostic procedure.

Ignition on. The Tire Pressure Monitoring (TPM) Module monitors its internal microprocessors for correct operation.

If the Tire Pressure Module detects an internal fault, the DTC is set.

Note. Check for and remove any non-FCC compliant components before beginning this diagnostic procedure.

With the ignition on, battery voltage between 9 and 16 volts, and engine run time greater than Three seconds.

The Tire Pressure Monitoring (TPM) Module does not receive any Can C bus messages for a specific amount of time. One trip fault.

Ignition run time is greater than one second. Battery voltage between 9 and 16 volts. Engine run time greater than three seconds.

Bus messages not received from the Totally Integrated Power Module (TIPM) for approximately two to five seconds.

Ignition run time is greater than one second. Battery voltage between 9 and 16 volts. Engine run time greater than three seconds.

Bus messages not received from the Powertrain Control Module (ECM/PCM) for approximately two to five seconds.

Note. If present, diagnose and repair DTC U0002-88-CAN C BUS OFF PERFORMANCE- BUS OFF before diagnosing this DTC.

Continuously when the ignition is on.

The battery voltage between 10 and 16 volts.

Ignition Off Draw (IOD) fuse installed.

Totally Integrated Power Module (TIPM) is configured correctly.

Bus messages not received from the Anti-lock Brake System (ABS) Module for approximately two to five seconds.

Continuously when the ignition is on.

The battery voltage between 10 and 16 volts.

Ignition Off Draw (IOD) fuse installed.

Totally Integrated Power Module (TIPM) is configured correctly.

Bus messages not received from the Totally Integrated Power Module (TIPM) for approximately two to five seconds.

Continuously when the ignition is on.

The battery voltage between 10 and 16 volts.

Ignition Off Draw (IOD) fuse installed.

Totally Integrated Power Module (TIPM) is configured correctly.

Bus messages not received from the Vehicle Security Control Module (WIN) for approximately two to five seconds.

STANDARD PROCEDURE - TPM VERIFICATION

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .