Dodge Nitro. Manual - part 785

Fig. 5: Fused Ignition Switch Output (Run-Start) Circuit Schematic 
Courtesy of CHRYSLER LLC 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

When Monitored: 

 

2007 Dodge Nitro R/T 

2007 ENGINE Ignition Control - Electrical Diagnostics - Nitro

  

With the ignition on. 

Set Condition: 

Over current condition detected on the (F1) Fused Ignition Switch Output (Run-Start) circuit. 

Diagnostic Test 

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 off 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) INSPECT THE TIPM, PCM, AND SHIFT LEVER ASSEMBLY (NAG1) TERMINALS & 
WIRE HARNESS FOR A CONDITION CAUSING HIGH CIRCUIT RESISTANCE 

Turn the ignition off. 

Disconnect the TIPM C1 harness connector. 

Disconnect the PCM C1 harness connector. 

Disconnect the Shift Lever Assembly (NAG1) harness connector 

Inspect the connector terminals for signs of corrosion build up and damage. 

Possible Causes 

TERMINAL DAMAGE OR CORROSION
HIGH RESISTANCE ON THE (F1) IGNITION SWITCH OUTPUT (UNLOCK-RUN-START) 
CIRCUIT
TIPM

 

2007 Dodge Nitro R/T 

2007 ENGINE Ignition Control - Electrical Diagnostics - Nitro

  

Visually inspect the wiring harness for any chafed, pierced, pinched or partially broken wires hidden in 
the wire insulation. 

Were any of the above conditions found?  

Yes  

Repair as necessary.  

Perform BODY VERIFICATION TEST - VER 1 .  

No  

Replace the TIPM in accordance with the service information  

Perform BODY VERIFICATION TEST - VER 1 .  

B219F IGNITION OFF DRAW (IOD) FUSE BLOWN 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

When Monitored: 

With the ignition on. This DTC will only set if vehicle has over 50 miles on it. 

Set Condition: 

IOD Fuse not installed or blown. 

Diagnostic Test 

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 off 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 step 2).  

Possible Causes 

IOD FUSE NOT INSTALLED
IOD FUSE BLOWN

 

2007 Dodge Nitro R/T 

2007 ENGINE Ignition Control - Electrical Diagnostics - Nitro

  

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) IOD FUSE 

Verify IOD Fuse installed in TIPM. 

Is IOD Fuse present?  

Yes  

Go to step 3).  

No  

Replace the IOD Fuse.  

Perform BODY VERIFICATION TEST - VER 1 .  

3) IOD FUSE BLOWN 

Verify IOD Fuse is blown. 

Is IOD Fuse blown?  

Yes  

Using the wiring diagrams, diagnose for a short to ground condition.  

Perform BODY VERIFICATION TEST - VER 1 .  

No  

Test complete.  

B2206-CURRENT VIN MISSING/MISMATCH 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

When Monitored: 

With the ignition on. 

Set Condition: 

A PCM from another vehicle has been installed in the vehicle. 

 

2007 Dodge Nitro R/T 

2007 ENGINE Ignition Control - Electrical Diagnostics - Nitro