Dodge Nitro. Manual — part 621
Turn the ignition on.
With the scan tool, read DTC's.
Does the DTC reset?
Yes
Go to 3).
No
Replace the Right High Beam Bulb in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1 .
3) (L34) RIGHT HIGH BEAM CONTROL CIRCUIT SHORT TO GROUND
Turn the ignition off.
Disconnect the TIPM C3 harness connector.
Disconnect the Right Headlamp harness connector.
Measure the resistance between ground and the Right High Beam Control circuit.
Is the resistance above 10k ohms?
Yes
Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1 .
No
Repair the (L34) Right High Beam Control circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1 .
B1638-RIGHT HI BEAM CONTROL CIRCUIT HIGH
For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article.
When Monitored:
Continuously.
Set Condition:
2007 Dodge Nitro R/T
2007 ACCESSORIES AND EQUIPMENT Lamps/Lighting - Exterior - Electrical/Diagnostics - Nitro
When the Totally Integrated Power Module (TIPM) detects a HIGH condition.
Diagnostic Test
1) INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, clear all DTC's.
Turn the Headlamps on.
With the scan tool, read DTC's.
Does the scan tool display active: B1638-RIGHT HIGH BEAM CONTROL CIRCUIT HIGH?
Yes
Go to 2).
No
The condition that caused this symptom is currently not present. Check for an intermittent
condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken
wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or
contaminated terminals. Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1 .
2) CHECK (L910) RIGHT HEADLAMP RETURN SIGNAL CIRCUIT
Turn the ignition off.
Disconnect the Right High Beam Lamp harness connector.
With a 12-volt test light connected to 12-volts, probe the (L910) right headlamp return signal circuit.
Does the test light illuminate brightly on each ground circuit?
Possible Causes
CHECK (L910) RIGHT HEADLAMP RETURN SIGNAL CIRCUIT
(L910) RIGHT HEADLAMP RETURN SIGNAL CIRCUIT OPEN
CHECK (L34) RIGHT HIGH BEAM CONTROL CIRCUIT
(L34) RIGHT HIGH BEAM CONTROL CIRCUIT OPEN
(L34) RIGHT HIGH BEAM CONTROL CIRCUIT SHORT TO VOLTAGE
RIGHT HIGH BEAM BULB
TOTALLY INTEGRATED POWER MODULE
2007 Dodge Nitro R/T
2007 ACCESSORIES AND EQUIPMENT Lamps/Lighting - Exterior - Electrical/Diagnostics - Nitro
Yes
Go to 4).
No
Go to 3).
3) (L910) RIGHT HEADLAMP RETURN SIGNAL CIRCUIT OPEN
Measure the resistance of the (L910) right headlamp return signal circuit at the Right High Beam harness
connector.
Is the resistance below 10.0 ohms?
Yes
Replace the Inoperative bulb in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1 .
No
Repair the (L910) right headlamp return signal circuit for an open.
Perform BODY VERIFICATION TEST - VER 1 .
4) CHECK (L34) RIGHT HIGH BEAM CONTROL CIRCUIT
Turn the ignition on.
With a 12-volt test light connected to ground, check the (L34) Right High Beam Control circuit.
Does the test light illuminate brightly with the headlamps switch turned on, and shut off with the
headlamps turned off?
Yes
Replace the Inoperative bulb in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1 .
No
Go to 5).
5) (L34) RIGHT HIGH BEAM CONTROL CIRCUIT OPEN
Turn the ignition off.
Disconnect the TIPM C3 harness connector.
2007 Dodge Nitro R/T
2007 ACCESSORIES AND EQUIPMENT Lamps/Lighting - Exterior - Electrical/Diagnostics - Nitro
Measure the resistance of the (L34) Right High Beam Control circuit between the Right Headlamp
harness connector and the TIPM C3 harness connector.
Is the resistance below 10.0 ohms?
Yes
Go to 6).
No
Repair the (L34) Right High Beam Control circuit for an open.
Perform BODY VERIFICATION TEST - VER 1 .
6) (L34) HIGH BEAM CONTROL CIRCUIT SHORT TO VOLTAGE
Turn the ignition on.
Measure for voltage on the (L34) High Beam Control circuit.
Is there any voltage present?
Yes
Repair the (L34) High Beam Control circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1 .
No
Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1 .
B163B-FRONT LEFT TURN CONTROL CIRCUIT LOW
For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article.
When Monitored:
With the Turn Signal activated.
Set Condition:
When the Totally Integrated Power Module (TIPM) detects a LOW condition.
Possible Causes
(L61) FRONT LEFT TURN SIGNAL CONTROL CIRCUIT SHORT TO GROUND
2007 Dodge Nitro R/T
2007 ACCESSORIES AND EQUIPMENT Lamps/Lighting - Exterior - Electrical/Diagnostics - Nitro
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