Ignition System - Electrical Diagnostics: Other Dodge Cab & Chassis R3500 HD

Monitor Conditions

1. When Monitored: With the ignition on.

Set Conditions

1. Set Condition: The TIPM will set this DTC within 500ms if the Ignition Run/Start circuit voltage is less than the expected value.

Possible Causes

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1. 1) CHECK FOR ACTIVE DTC With the scan tool, read the DTCs. Cycle the ignition switch from off to on, leaving the ignition off for a minimum of 30 seconds. With the scan tool, read the DTCs. Does the scan tool display this DTC as active? Yes Go To 2) . No If the DTC is stored, check for an intermittent condition. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
2. 2) CHECK (F201) CIRCUIT FOR A SHORT TO GROUND Remove fuse number 21. With the scan tool, read DTCs. Did the DTC changed from active to stored? Yes Go To 6) . No Go To 3) .
3. 3) CHECK (F202) CIRCUIT FOR A SHORT TO GROUND Remove fuse number 28. With the scan tool, read DTCs. Did the DTC changed from active to stored? Yes Go To 9) . No Go To 4) .
4. 4) CHECK (F21) CIRCUIT FOR A SHORT TO GROUND Remove fuse number 29. With the scan tool, read DTCs. Did the DTC changed from active to stored? Yes Go To 11) . No Go To 5) .
5. 5) (F12) FUSED IGNITION SWITCH OUTPUT (RUN-START) SHORTED TO GROUND Turn the ignition off. Disconnect the TIPM C3 and C10 harness connectors Measure the resistance between ground and the (F12) Fused Ignition Switch Output (Run-Start) circuit. Is the resistance below 10K ohms? Yes Repair the (F12) Fused Ignition Switch Output (Run-Start) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace the TIPM in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
6. 6) OCCUPANT RESTRAINT CONTROLLER WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two minutes before proceeding. Disconnect the ORC C2 harness connector Turn the ignition on. Reconnect the battery. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Go To 7) . No Replace the ORC in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
7. 7) PASSENGER AIRBAG ON/OFF SWITCH Disconnect the Passenger Airbag ON/OFF Switch With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Go To 8) . No Replace the Passenger Airbag Switch in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
8. 8) (F201) FUSED IGNITION SWITCH OUTPUT (RUN-START) SHORTED TO GROUND Disconnect the TIPM C8 harness connector. Measure the resistance between ground and the (F201) Fused Ignition Switch Output (Run-Start) circuit. Is the resistance below 10K ohms? Yes Repair the (F201) Fused Ignition Switch Output (Run-Start) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace the TIPM in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
9. 9) POWERTRAIN CONTROL MODULE Disconnect the PCM C1 harness connector. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Go To 10) . No Repair the PCM in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
10. 10) (F202) FUSED IGNITION SWITCH OUTPUT (RUN-START) SHORTED TO GROUND Disconnect the TIPM C3 harness connector. Measure the resistance between ground and the (F202) Fused Ignition Switch Output (Run-Start) circuit. Is the resistance below 10K ohms? Yes Repair the (F202) Fused Ignition Switch Output (Run-Start) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace the TIPM in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
11. 11) INSIDE REARVIEW MIRROR Disconnect the Inside Rearview Mirror harness connector. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Go To 12) . No Repair the Inside Rearview Mirror in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
12. 12) TRANSFER CASE SELECTOR SWITCH Disconnect the Transfer Case Selector Switch harness connector. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Go To 13) . No Repair the Transfer Case Selector Switch in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
13. 13) PASSENGER DOOR LOCK SWITCH Disconnect the Passenger Door Lock Switch harness connector. With the scan tool, read DTCs. Does the scan tool display this DTC as active? Yes Go To 14) . No Repair the Passenger Door Lock Switch in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
14. 14) (F21) FUSED IGNITION SWITCH OUTPUT (RUN-START) SHORTED TO GROUND Disconnect the TIPM C3 harness connector. Measure the resistance between ground and the (F21) Fused Ignition Switch Output (Run-Start) circuit. Is the resistance below 10K ohms? Yes Repair the (F21) Fused Ignition Switch Output (Run-Start) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace the TIPM in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .

Scheme 12

1. When Monitored: With the ignition on.

1. Set Condition: The TIPM will set this code when a short to ground condition is detected on the Ignition Run Control 1 circuit.

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1. 1) CHECK FOR ACTIVE DTC With the scan tool, read the active DTC. Cycle the ignition switch from off to on, leaving the ignition off for a minimum of 30 seconds. With the scan tool, read the active DTC. Does the scan tool display this DTC as active? Yes Go To 2) . No If the DTC is stored, check for an intermittent condition. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
2. 2) OCCUPANT RESTRAINT CONTROLLER WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two minutes before proceeding. Disconnect the ORC C2 harness connector Turn the ignition on. Reconnect the battery. With the scan tool, read DTCs. Does the scan tool display active DTC-B2122-IGNITION RUN CONTROL 1 CIRCUIT LOW? Yes Go To 3) . No Replace the ORC in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
3. 3) PASSENGER HEATED SEAT SWITCH Turn the ignition off. Disconnect the Passenger Heated Seat Switch. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display active DTC-B2122-IGNITION RUN CONTROL 1 CIRCUIT LOW? Yes Go To 4) . No Replace the Passenger Heated Seat Switch in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
4. 4) DRIVER HEATED SEAT SWITCH Turn the ignition off. Disconnect the Driver Heated Seat Switch. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display active DTC-B2122-IGNITION RUN CONTROL 1 CIRCUIT LOW? Yes Go To 5) . No Replace the Driver Heated Seat Switch in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
5. 5) ADJUSTABLE PEDALS SWITCH Turn the ignition off. Disconnect the Adjustable Pedals Switch. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display active DTC-B2122-IGNITION RUN CONTROL 1 CIRCUIT LOW? Yes Go To 6) . No Replace the Adjustable Pedals Switch in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
6. 6) (F504) FUSED IGNITION SWITCH OUTPUT (RUN) SHORTED TO GROUND Turn the ignition off. Disconnect the TIPM C3 harness connector. Measure the resistance between ground and the (F504) Fused Ignition Switch Output (Run) circuit. Is the resistance below 10K ohms? Yes Repair the (F504) Fused Ignition Switch Output (Run) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Go To 7) .
7. 7) (F100) FUSED IGNITION SWITCH OUTPUT (RUN) SHORTED TO GROUND Disconnect the TIPM C8 harness connector. Measure the resistance between ground and the (F100) Fused Ignition Switch Output (Run) circuit. Is the resistance below 10K ohms? Yes Repair the (F100) Fused Ignition Switch Output (Run) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace the TIPM in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .

1. When Monitored: With the ignition on.

1. Set Condition: The TIPM will set this code when a short to ground condition is detected on the Ignition Run Control 1 circuit.

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1. 1) CHECK FOR ACTIVE DTC With the scan tool, read the active DTC. Cycle the ignition switch from off to on, leaving the ignition off for a minimum of 30 seconds. With the scan tool, read the active DTC. Does the scan tool display this DTC as active? Yes Go To 2) . No If the DTC is stored, check for an intermittent condition. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
2. 2) OCCUPANT RESTRAINT CONTROLLER WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two minutes before proceeding. Disconnect the ORC C2 harness connector Turn the ignition on. Reconnect the battery. With the scan tool, read DTCs. Does the scan tool display active DTC-B2122-IGNITION RUN CONTROL 1 CIRCUIT LOW? Yes Go To 3) . No Replace the ORC in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
3. 3) PASSENGER HEATED SEAT SWITCH Turn the ignition off. Disconnect the Passenger Heated Seat Switch. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display active DTC-B2122-IGNITION RUN CONTROL 1 CIRCUIT LOW? Yes Go To 4) . No Replace the Passenger Heated Seat Switch in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
4. 4) DRIVER HEATED SEAT SWITCH Turn the ignition off. Disconnect the Driver Heated Seat Switch. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display active DTC-B2122-IGNITION RUN CONTROL 1 CIRCUIT LOW? Yes Go To 5) . No Replace the Driver Heated Seat Switch in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
5. 5) ADJUSTABLE PEDALS SWITCH Turn the ignition off. Disconnect the Adjustable Pedals Switch. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display active DTC-B2122-IGNITION RUN CONTROL 1 CIRCUIT LOW? Yes Go To 6) . No Replace the Adjustable Pedals Switch in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
6. 6) (F504) FUSED IGNITION SWITCH OUTPUT (RUN) SHORTED TO GROUND Turn the ignition off. Disconnect the TIPM C3 harness connector. Measure the resistance between ground and the (F504) Fused Ignition Switch Output (Run) circuit. Is the resistance below 10K ohms? Yes Repair the (F504) Fused Ignition Switch Output (Run) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Go To 7) .
7. 7) (F100) FUSED IGNITION SWITCH OUTPUT (RUN) SHORTED TO GROUND Disconnect the TIPM C8 harness connector. Measure the resistance between ground and the (F100) Fused Ignition Switch Output (Run) circuit. Is the resistance below 10K ohms? Yes Repair the (F100) Fused Ignition Switch Output (Run) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace the TIPM in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .

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1. When Monitored: With the ignition on.

1. Set Condition: The TIPM will set this code when a short to ground condition is detected on the Ignition Run/ACC circuit.

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1. 1) CHECK FOR ACTIVE DTC With the scan tool, read the active DTC. Cycle the ignition switch from off to on, leaving the ignition off for a minimum of 30 seconds. With the scan tool, read the active DTC. Does the scan tool display this DTC as active? Yes Go To 2) . No If the DTC is stored, check for an intermittent condition. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
2. 2) INSTRUMENT PANEL POWER OUTLET Turn the ignition off. Disconnect the Instrument Panel Power Outlet. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display active DTC-B212F-IGNITION RUN/ACC CONTROL CIRCUIT LOW? Yes Go To 3) . No Replace the Instrument Panel Power Outlet in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
3. 3) DRIVER SEAT BELT TENSION REDUCER Turn the ignition off. Disconnect the Driver Seat Belt Tension Reducer. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display active DTC-B212F-IGNITION RUN/ACC CONTROL CIRCUIT LOW? Yes Go To 4) . No Replace the Driver Seat Belt Tension Reducer in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
4. 4) (F983) FUSED IGNITION SWITCH OUTPUT (RUN/ACC) SHORTED TO GROUND Turn the ignition off. Disconnect the TIPM C3 harness connector. Measure the resistance between ground and the (F983) Fused Ignition Switch Output (Run/ACC) circuit. Is the resistance below 10K ohms? Yes Repair the (F983) Fused Ignition Switch Output (Run/ACC) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Go To 5) .
5. 5) (F984) FUSED IGNITION SWITCH OUTPUT (RUN/ACC) SHORTED TO GROUND Measure the resistance between ground and the (F984) Fused Ignition Switch Output (Run/ACC) circuit. Is the resistance below 10K ohms? Yes Repair the (F984) Fused Ignition Switch Output (Run/ACC) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace the TIPM in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .

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1. When Monitored: With the ignition on.

1. Set Condition: The TIPM will set this code when a short to ground condition is detected on the (F1) Fused Ignition Switch Output (Off/Run/Start) circuit.

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1. 1) CHECK FOR ACTIVE DTC With the scan tool, read the active DTC. Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 10 seconds. With the scan tool, read the active DTC. Does the scan tool display this DTC as active? Yes Go To 2) . No If the DTC is stored, check for an intermittent condition. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
2. 2) INSTRUMENT CLUSTER Turn the ignition off. Disconnect the Instrument Cluster C3 harness connector. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display active DTC-B2184-IGNITION UNLOCK RUN/START CONTROL CIRCUIT LOW? Yes Go To 3) . No Replace the Instrument Cluster in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
3. 3) (F1) FUSED IGNITION SWITCH OUTPUT (OFF/RUN/START) CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the TIPM C1 harness connector. Measure the resistance between ground and the (F1) Fused Ignition Switch Output (Off/Run/Start) circuit. Is the resistance below 10K ohms? Yes Repair the (F1) Fused Ignition Switch Output (Off/Run/Start) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace the TIPM in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .

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1. When Monitored: With the ignition in the Start position.

1. Set Condition: The TIPM detects a short to ground condition in the (F962) Fused Ignition Switch Output (Start) circuit.

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1. 1) CHECK FOR ACTIVE DTC With the scan tool, record and erase DTC's. Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 30 seconds. With the scan tool, read the active DTC's. Does the scan tool display this DTC as active? Yes Go To 2) . No If the DTC is stored, check for an intermittent condition. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
2. 2) POWERTRAIN CONTROL MODULE (NGC) Turn the ignition off. Disconnect the Powertrain Control Module C1 harness connector. Turn the ignition on, wait 30 seconds. With the scan tool, read TIPM DTCs. Did DTC B2188-IGNITION START CONTROL CIRCUIT LOW change from active to stored? Yes Replace the Powertrain Control Module in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Go To 3) .
3. 3) (T751) FUSED IGNITION SWITCH OUTPUT (START) CIRCUIT SHORT TO GROUND Turn the ignition off. Disconnect the TIPM C7 harness connector. Measure the resistance between the (T751) Ignition Switch Output (START) circuit and ground. Is the resistance below 10K ohms? Yes Repair the (T751) Fused Ignition Switch Output (START) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace the TIPM in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .

1. When Monitored: With the ignition on.

1. Set Condition: Over current condition detected on the Fused Ignition Switch Output (Run-Start) circuits.