Specifications

5A2 – 46IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DTC P0604 Internal Transmission Control Module (TCM) Random
Access Memory (RAM) Error
Step Action Value(s) Yes No
1
1. Turn the ignition OFF.
2. Install the Scan tool.
3. With the engine OFF, turn the ignition switch to
the ON position.
4. Select Store Freeze Frame/Failure Records
from the Diagnostic Trouble Codes Information
menu.
5. Store Freeze Frame/Failure Records.
6. Select Clear DTC Information from the Diag-
nostic Trouble Codes Information menu.
7. Clear DTC Information.
8. Perform two vehicle drive cycles.
Is the Malfunction Indicator Lamp (MIL) ON?
– Go to Step 2 Inspect Trans-
mission Control
Module (TCM)
wiring harness
and connector
for signs of an
intermittent
condition. Re-
pair as neces-
sary.
2
1. Select Request DTC by Status from the Diag-
nostic Trouble Codes Information menu.
2. Request DTC by Status.
Is DTC P0604 displayed?
– Replace the
Transmission
Control module
(TCM)
Inspect Trans-
mission Control
Module (TCM)
wiring harness
and connector
for signs of an
intermittent
condition. Re-
pair as neces-
sary.