RAM 2500 Truck 4WD V8-5.7L VIN D (2005)
Measure the resistance between ground and the (Z18) Instrument Cluster Ground circuit.
Q: Is the resistance below 5.0 ohms?
YES: Replace and configure the Instrument Cluster. Perform BODY VERIFICATION TEST - VER 1. See: Powertrain Management/Computers
and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests/Body Verification Test
NO: Repair the (Z18) Instrument Cluster Ground circuit for an open. Perform BODY VERIFICATION TEST - VER 1. See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification
Tests/Body Verification Test
Any PCI Indicator Inoperative
ANY PCI INDICATOR INOPERATIVE
POSSIBLE CAUSES
-
No response - PCI BUS
-
No response - instrument cluster
-
Indicator message not received
-
Instrument cluster
DIAGNOSTIC TEST
1. NO RESPONSE - PCI BUS
Turn the ignition on.
With the DRBIII(R), select System Monitors, then J1850 Module Scan.
Q: Does the DRBIII(R) display MIC PRESENT on the BUS?
YES: Go To 2
NO: Refer to the COMMUNICATION category and perform the appropriate symptom. Perform BODY VERIFICATION TEST - VER 1. See:
Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests/Body Verification Test
2. NO RESPONSE - INSTRUMENT CLUSTER
With the DRBIII(R), select MIC, then MODULE DISPLAY.
Q: Does the DRBIII(R) display NO RESPONSE from MIC?
YES: Refer to the symptom list for problems related to NO RESPONSE FROM THE INSTRUMENT CLUSTER. Perform BODY
VERIFICATION TEST - VER 1. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures/Verification Tests/Body Verification Test
NO: Go To 3
3. NO RESPONSE - PCI BUS
With the DRBIII(R), select Body, MIC, MONITORS, PCI BUS MONITORS.
Q: Does the DRBIII(R) display PCM INACTIVE on the BUS?
YES: Refer to the symptom list for problems related to NO RESPONSE FROM THE POWERTRAIN CONTROL MODULE. Perform BODY
VERIFICATION TEST - VER 1. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures/Verification Tests/Body Verification Test
NO: Go To 4
4. INDICATOR MESSAGE NOT RECEIVED
NOTE: Diagnose and repair any PCM or BCM DTCs before proceeding with this test.
Perform the Instrument Cluster Self Test.
Depress and hold the Trip Odometer button while turning the ignition from the off to the on position.
Observe the indicator in question.
Q: Did the indicator illuminate?
YES: Perform BODY VERIFICATION TEST - VER 1. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests/Body Verification Test
NO: Replace and configure the Instrument Cluster. Perform BODY VERIFICATION TEST - VER 1. See: Powertrain Management/Computers
