LEMON Manuals: Even more car manuals for everyone
Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 106 (Chassis Diagnostic Procedures - Anti-Lock Brake System) >> Diagnostic Information And Procedures >> Brakes (Cab) - Symptoms >> Symptom: INTERNAL MAIN RELAY OPEN - 65 >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
  1. INTERMITTENT DTC
  2. OPEN FUSED B(+) AND FUSED IGNITION SWITCH OUTPUT (RUN)
  3. OPEN GROUND CIRCUITS
  4. CAB - INTERNAL CONCERN
TEST ACTION AND APPLICABILITY

TEST ACTION APPLICABILITY
1
NOTE: Ensure the battery is fully charged.
Turn the ignition on.With the DRBIII®, erase DTC's.Turn the ignition off.Turn the ignition on.With the DRBIII®, read DTC's.Is the INTERNAL MAIN RELAY OPEN DTC present?
  1. Yes --> Go To 2
  2. No --> Go To 4
 All
2
NOTE: CHECK FOR OPEN FUSES.
Turn the ignition off.Disconnect the CAB harness connector.Check connectors - Clean/repair as necessary.Turn the ignition on.Measure the voltage of the Fused B(+) and Fused Ignition Switch Output (RUN) circuits.Is the voltage above 11 volts?
  1. Yes --> Go To 3
  2. No --> Repair the appropriate circuit(s) for an open.

    Perform ABS VERIFICATION TEST - VER 1.

 All
3 Turn the ignition off.
Disconnect the CAB harness connector.
Check connectors - Clean/repair as necessary.
Measure the resistance of the Ground circuits in the CAB harness connector.
Is the resistance below 5.0 ohms?
  1. Yes --> Replace and program the CAB Module in accordance with the Service Information.

    Perform ABS VERIFICATION TEST - VER 1.

  2. No --> Repair the Ground circuit(s) for an open.

    Perform ABS VERIFICATION TEST - VER 1.

 All
4 Turn the ignition off.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.
Visually inspect the related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals.
Refer to any Hotline letters or Technical Service Bulletins that may apply.
Were any problems found?
  1. Yes --> Repair as necessary.

    Perform ABS VERIFICATION TEST - VER 1.

  2. No --> Test Complete.
 All
scientia non olet · About LEMON Manuals