Test SCG - Solenoid Controlled By Ground: Notes

Fig 1: Identifying Injector Connector Terminals (2.0L A/T)

Fig 2: Identifying Typical Solenoid Connector Terminals

Fig 3: Identifying EVR/VRIS Solenoid Ports

NOTE: Enter this test only when Code 25, 26, 28, 29, 34, 41 or 46 is displayed during self-test procedures (KOEO or KOER). This test is intended to diagnose following solenoids and circuits: Canister Purge (CANP), EGR Control (EGRC), EGR Vent (EGRV), EGR Vacuum Regulator (EVR), Fuel Pressure Regulator Control (FPRC), High Speed Inlet Air Control (HSIA), Idle Air Control (IAC), injectors (INJ) or injector banks (BANK), and Variable Resonance Induction System Solenoids (VRIS).

CIRCUIT PIN IDENTIFICATION

Circuit

Breakout Box Pin No.

PCM Pin

Wire Color

CANP

⁽¹⁾ 31A

White/Black

EVR

White/Blue

FPRC

⁽¹⁾ 53A

Green

IAC

⁽²⁾ 21B

Light Green/Black

INJ1

Yellow/Black

INJ2

Yellow/White

INJ3

Yellow/Red

INJ4

Yellow/Green

VPWR

37 & 57

1B & 1U

⁽³⁾ Red/Black

⁽¹⁾	Ensure Breakout Box Adapter (T92C-6000-AH) selector switch is in the "A" position.

⁽²⁾	Ensure Breakout Box Adapter (T92C-6000-AH) selector switch is in the "B" position.

⁽³⁾	VPWR wire to fuel injectors is a White/Red wire.

1) Checking System Integrity Visually check all wiring, connectors and components for damage, shorting or looseness. If a fault is found, repair as necessary. If no fault is found, go to next step.

2) Solenoid Function Turn ignition off. Install breakout box, leaving PCM disconnected. Check function of appropriate solenoid. See SOLENOID PERFORMANCE CHECK. If solenoid functions okay, test is complete. If no other problem or code is found, replace PCM. If solenoid does not function properly, go to next step.

3) Check Power To SolenoID Turn ignition off. Disconnect connector of solenoid to be tested. Turn ignition on. Measure voltage between connector ground and VPWR terminal at solenoid connector. If voltage is less than battery voltage, go to TEST VPWR. If VPWR circuit is okay, repair VPWR wire to solenoid. If voltage is battery voltage, go to next step.

4) Check For Open Solenoid Wire To PCM Turn ignition off. Ensure breakout box is installed and PCM is disconnected. Disconnect connector of solenoid to be tested. Measure resistance between solenoid test pin at breakout box and terminal at solenoid connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open solenoid wire to PCM.

5) Check For Short In Solenoid Wire To PCM Turn ignition off. Ensure breakout box is installed and PCM is disconnected. Disconnect connector of solenoid to be tested. Measure resistance between ground and solenoid test pin at breakout box. If resistance is more than 10,000 ohms, replace solenoid. If resistance is 10,000 ohms or less, repair short to ground in solenoid wire.