Dodge 2004 Neon SX2 Diagnostic Manual page 509

P0453-NVLD PRESSURE SWITCH SENSE CIRCUIT HIGH —
TEST
3 Turn the ignition off.
Disconnect the NVLD electrical harness connector.
Measure the resistance between the (K107) NVLD Switch Signal circuit and (K106)
NVLD Sol Control circuit in the NVLD electrical harness connector.
Is the resistance below 5.0 ohms?
Yes → Repair the (K107) NVLD Switch Signal circuit shorted to the
→ Go To 4
No
4 Turn the ignition off.
Disconnect the NVLD electrical harness connector.
Using a jumper wire, jumper across the NVLD Switch Signal circuit and the Ground
circuit.
Monitor the NVLD Switch state on the DRBIII .
Does the Switch change from OPEN to CLOSED?
Yes → Replace the NVLD Assembly.
→ Go To 5
No
5 Turn the ignition off.
Disconnect the NVLD electrical harness connector.
Measure the resistance between the (Z1) Ground circuit and ground.
Is the resistance below 5.0 ohms?
Yes → Go To 6
→ Repair the open in the (Z1) Ground circuit.
No
6 Turn the ignition off.
Disconnect the NVLD electrical harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K107) NVLD Switch Signal circuit from the NVLD
electrical harness connector to the appropriate terminal of special tool # 8815.
Is the resistance below 5.0 ohms?
Yes → NOTE: Before continuing, check the PCM harness connector
→ Repair the open in the (K107) NVLD Switch Signal circuit.
No
ACTION
(K106) NVLD Sol Control circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
terminals for corrosion, damage or terminal push out. Repair as
necessary. Replace and program the Powertrain Control Module
in accordance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
DRIVEABILITY - NGC
173
Continued
APPLICABILITY
All
All
All
All