ELECTRICAL SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
ENGINE TEMPERATURE SENSORS OPEN OR SHORT CIRCUIT TEST - CONTINUED
Expected Results. Short circuit diagnostic code or open circuit diagnostic code is active.
If short circuit diagnostic code is active, proceed to step 4.
If open circuit diagnostic code is active, proceed to step 5.
Disconnect sensor to create open circuit (WP 0063 00 and WP 0064 00).
Disconnect sensor connector of sensor with short circuit diagnostic code.
Turn engine start switch to ON position (TM 5-3805-290-10). Wait at least 15 seconds for activation of diagnostic
Access Active Diagnostic Code screen of MSD. Check for active open circuit diagnostic code.
Expected Result. Open circuit diagnostic code for disconnected sensor is now active.
If results are OK, short circuit diagnostic code was active before disconnecting sensor. Open circuit diag-
nostic code became active after disconnecting sensor. Refer to Electrical Connectors Inspection (WP 0022
(a) Inspect connector seals for damage.
(b) Connect sensor and verify fault returns. If fault returns, sensor is faulty.
(c) Replace sensor (WP 0063 00 or WP 0064 00).