Test PGC - Power & Ground Check

NOTE: Enter this test only when directed here by TEST STO or by another test. This test is intended to diagnose Keep Alive Power (KAPWR) and Ground (GND) circuits.

CIRCUIT PIN IDENTIFICATION

Circuit	Breakout Box Pin No.	PCM Pin	Wire Color
GND	40 & 60	3A	Black
GND	20	3B	Black
GND	16	3C	Black/Red
KAPWR	1	1A	Blue/Red

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

2) Check Voltage Turn ignition off. Install breakout box, leaving PCM disconnected. Measure voltage at KAPWR test pin at breakout box. If reading is about battery voltage, go to next step. If reading is less than battery voltage, repair wire as necessary.

3) Check Grounds Ensure ignition is off, breakout box is installed and PCM is disconnected. Measure resistance between ground and GND test pin at breakout box. Repeat test for each ground wire. If resistance is less than 5 ohms, replace PCM. If resistance is 5 ohms or more, repair open ground wire.