P110 3 - COOLANT TEMPERATURE CIRCUIT FAILED HIGH (VOLTAGE HIGH) OR P175 3 - OIL TEMPERATURE CIRCUIT FAILED HIGH (VOLTAGE HIGH) (CONT) -726280705

TM 9-2320-364-20-1

Section IV. TROUBLESHOOTING CHARTS (Cont.)

E. FLASH CODE:

J1587 CODE:

P110 3 - COOLANT TEMPERATURE CIRCUIT FAILED HIGH (VOLTAGE HIGH)

OR:

P175 3 - OIL TEMPERATURE CIRCUIT FAILED HIGH (VOLTAGE HIGH)

STEP/SEQUENCE

RESULT

WHAT TO DO NEXT

14-9

Open Line Check

Turn ignition off.

Less than or

Go to 14-11.

Disconnect the engine harness

equal to 5 ohms.

connector at the ECM.

Read resistance between sockets

Greater than

Signal line (ckt #120) or return

R2 (ckt #120) and Y2 (ckt #452)

5 ohms or open.

line (ckt #452) is open. Repair

on the engine harness connector.

open. Then go to 14-30.

14-10

Check ECM

Connectors

Check terminals at the ECM

Terminals and

Replace ECM (para 7-57).

engine harness connector (both

connectors are okay.

Then go to 14-30.

the ECM and harness side) for

damage; bent, corroded, and

Problem found.

Repair terminals/connectors

unseated pins or sockets.

(para 7-101). Then go to 14-30.

14-11

Check ECM

Connectors

Check terminals at the

Terminals and

Replace ECM (para 7-57).

engine harness connector (both

connectors are okay.

Then go to 14-30.

the ECM and harness side) for

damage; bent, corroded, and

Problem found.

Repair terminals/connectors

unseated pins or sockets.

(para 7-101). Then go to 14-30.

14-30

Verify Repairs

Turn ignition off.

No codes.

Repairs are complete.

Reconnect all connectors.

Turn ignition on.

Code 110/3 or 175/3

All system diagnostics are

Clear codes.

(any other codes.)

complete. Please review this

Note status of "Check Engine"

section from the start to

light.

find the error.

If "Check Engine" light does not

stay on, start engine and run

Any other codes

Go to START-1, pg 2-539,

(TM 9-2320-364-10) until

except Codes 110/3

to service other codes.

"Check Engine" light comes on

or 175/3.

or after 8 minutes. Stop engine.

Read inactive codes.

2-635