P1602
BATTERY VOLTAGEFault Symptoms
Malfunctioning.
Conditions.
P0560
Battery voltage less than 2.5 V.
P1602
No +30 current when +15 OFF
Diagnostic Procedure.
See diagnostic trouble codes P0562, P0563.
Check The Wiring.
Intermittent faults may occur as a result of occasional short circuits and breaks in the wiring. Jiggle the leads and in-line connectors at several places and in different directions to reveal faults in the wiring harness. Observe the multimeter, Tech 2 diagnostics instrument or test lamp while carrying out this check.