Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Test D





Pinpoint Test D: DTC C1095-ABS Hydraulic Pump Motor Circuit Failure











CAUTION: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.

Normal Operation
The operating voltage required to run the hydraulic pump motor is in a range between 10 and 17 volts.
Voltage is supplied by circuit 534 (YE/LG) (power hot at all times). Ground is provided through circuit 530 (LG/YE).

Possible Causes
- Ground circuit 530 (LG/YE) open
- Power supply circuit 534 (YE/LG) open
- Hydraulic pump motor.
- ABS module.