Esp® Warning Lamp Does Not Come On At Ignition Switch On: Troubleshooting

TROUBLESHOOTING CHART

Step	Action	YES	NO
1	Turn ignition switch to ON position. Do other warning lamps come ON?	Go to Step 2.	Go to Step 3.
2	Connect scan tool to DLC with ignition switch turned OFF. Turn ignition switch to OFF position and check DTC. Is there DTC U1073?	Go to DTC U1073: CONTROL MODULE COMMUNICATION BUS OFF for troubleshooting.	Substitute a known-good combination meter and recheck. If ESP® warning lamp remains OFF, substitute a known-good ESP® hydraulic unit/control module assembly and recheck.
3	Is Circuit fuse for combination meter in good condition?	Go to Step 4.	Replace fuse and check for short circuit to ground.
4	Check CAN communication circuit between combination meter and ESP®, control module referring to DTC U1073: CONTROL MODULE COMMUNICATION BUS OFF Is CAN communication circuit in good condition?	Go to Step 5.	Repair or replace.
5	Remove combination meter with ignition switch turned OFF. Check for proper connection to "PPL/RED" and "BLK" wire of combination meter connector. If OK, turn ON ignition switch and measure voltage at "PPL/RED" wire of combination meter connector and vehicle body ground. Is it 10 - 14 V?	Go to Step 6.	Repair power supply circuit for combination meter.
6	Measure resistance between "BLK" wire of combination meter connector and vehicle body ground. Is resistance less than 2 Ω?	Replace combination meter.	"BLK" circuit open or high resistance.