G420E/G424E
Tier
LP Engine
Advanced Diagnostics
55
Table a. MI-04 Diagnostic Fault Codes (Flash Codes)
DFC
Probable Fault
Action
Corrective Action, First Check
54 BatterySensorInputHigh
Battery voltage measured above
+15.9 VDC
Stored Fault Code
(MIL Only)
Check battery and charging system
voltage
z
Check battery voltage during
starting and with the engine
running
z
Check voltage regulator,
alternator and charging system
z
Check battery and wiring for
overheating and damage
z
Measure battery power at the
SECM with a multimeter
SECM PIN 13 (BATT +) to
SECM PIN 14 (BATT -)
55 XDRPSensorInputLow
+5VDC Transducer power supplied
by the SECM to the sensors is below
+4.60VDC
(Expected faults when Transducer
power is lost
CODES: 22, 24, 33, 62, 64, 66, 68 &
69)
Engine Shutdown
Measure transducer power at the
TMAP connector with a multimeter
TMAP PIN 3 +5VDC to TMAP PIN 1
XDCR GND
Verify transducer power at the SECM
with a multimeter
SECM PIN 18 +5VDC to SECM PIN
1 XDCR GND
Verify transducer power at ETC with
a multimeter
ETC PIN 3 XDCR PWR to ETC PIN
2 XDCR GND
Verify transducer power to the
Acceleration Pedal with a multimeter
