TM 5-3805-298-23-1
0067
Table 1. 2246 Glow Plug Start Aid Relay Diagnostic Codes - Continued.
067
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 2. Test for Shorted Engine
2246-6 Glow Plug Start Aid
Wiring Harness.
Relay Current Above Normal
1. Turn battery disconnect switch and
- Continued
ignition switch to OFF position
(TM 5-3805-298-10).
2. Remove right engine access panel
(WP 0348).
3. Remove left engine access panel
(WP 0350).
4. Disconnect connector EN-C3
(WP 0012, Figure 38) from glow
plug relay.
5. Disconnect connector EN-C1
(WP 0012, Figure 11) from engine
ECM J1.
6. Using digital multimeter
Continuity - Replace engine wiring
(WP 0174), test for continuity
harness (WP 0299).
between connector EN-C1
Proceed to Test Step 4.
(WP 0012, Figure 11) terminal 57
No Continuity -
and ground.
Proceed to step 7.
7. Using digital multimeter
Continuity - Replace engine wiring
(WP 0174), test for continuity
harness (WP 0299).
between connector EN-C1
Proceed to Test Step 4.
(WP 0012, Figure 11) terminal 57
No Continuity -
and all other terminals in EN-C1.
Proceed to Test Step 3.
Test Step 3. Test for Shorted Glow
Plug Relay.
1. Using digital multimeter
Resistance 50 to 54 Ohms - Proceed
(WP 0174), measure resistance
to step 2.
between glow plug relay connector
Resistance Greater Than 54 Ohms or
(WP 0012, Figure 38) terminal 1
Less Than 50 Ohms - Replace Glow
and terminal 2.
Plug Relay Magnetic Switch (WP 0261).
Proceed to Test Step 4.
2. Using digital multimeter
Continuity - Replace Glow Plug Relay
(WP 0174), measure continuity
Magnetic Switch (WP 0261).
between glow plug relay connector
Proceed to Test Step 4.
(WP 0012, Figure 38) terminal 1
No Continuity- Replace Engine ECM
and ground.
(WP 0265).
Proceed to Test Step 4.
0067-20
