Suzuki GA413 Service Manual page 795

DTC
NO.
P1620
ECU code not registered
(No.84)
P1621 No ECU code transmitted from Immobiliz-
(No.83) er Control Module
P1622
Faulty in ECM
(No.82)
P1623
ECU code not matched
(No.81)
Note:
D For ( ) marked No. in DTC column, it is used for vehicle without EGR valve.
D DTC No.12 appears when none of the other codes is identified (vehicle without EGR valve). It can be
checked by flashing pattern of MIL.
D For star (l) marked items in MIL column, MIL does not light even when DTC is detected. Bear this in mind
when diagnosing troubles.
DETECTING ITEM
ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-19
DETECTING CONDITION
(DTC will set when detecting:)
Refer to Section 8G. Refer to Section 8G
MIL